General Geology

• Aa        Basics
• Ab        Geology for non-academic readers
• Ac        System Earth
• Ad        Miscellaneous, Commemorative publications
• Ada      Impact geology, catalysms
• Ae        Planetary geology, Sun, Moon
• Af         Historical geology
• Afa       Precambrian
• Afb       Palaeozoic
• Afc       Mesozoic
• Afd       Cenozoic
• Ag        Stratigraphy
• Aga      Sequence stratigraphy
• Agb      Age determination
• Ah        Quaternary geology
• Ai         Geomorphology
• Aj         Peatlands
• Ak        Karst geology, speleology
• Al         Volcanism
• Am       Sedimentary geology
• Ama     Sedimentary deposition
• Amb     Basin analysis
• An        Structural geology, tectonics
• Ao        Orogeny
• Aoa      IGCP Project no. 5
• Ap        Plate tectonics
• Aq        Marine geology
• Aqa      Deep Sea Drilling Project
• Ar         History of geoscience
• Ara       Theory of geoscience
• Arb       Reprints
• As         Encyclopaedias
• Asa       Dictionaries

          Austria

• Ba        Montanuniversitaet Leoben
• Baa      University Library
• Bab      Department of Geosciences
• Bac      Chair of Ceramics
• Bad      Geoscience Library
• Bb        Austria - miscellaneous
• Bc        Austria - geology
• Bca      Austria - mineralogy
• Bcb      Austria - palaeontology
• Bd        Styria
• Be        Carinthia
• Bf         Salzburg
• Bg        Tyrol
• Bh        Vorarlberg
• Bi         Upper Austria
• Bj         Lower Austria
• Bk        Vienna
• Bl         Burgenland

          Europe

• Ca        Alps
• Cb        Europe
• Cba      North Sea
• Cbb      Baltic Sea
• Cbc      Mediterranean
• Cc        Germany
• Cca      Bavaria / Bayern
• Ccb      North Rhine-Westphalia
• Cd        Switzerland
• Ce        France, Benelux
• Cf         British Isles
• Cg        Iberian Peninsula
• Ch        Italy, South Tyrol
• Ci         Balkans (former Yugoslavia, Bulgaria, Albania)
• Cj         Greece, Cyprus
• Ck        Turkey
• Cl         Romania
• Cm       Hungary
• Cn        Czech Republic, Slovakia
• Co        Poland
• Cp        Russia (former Soviet Union)
• Cq        Scandinavia, Greenland

          Outside Europe

• Da        Global countries
• Db        Australia, Pacific
• Dc        Arctic, Antarctic
• Dd        Asia
• De        Middle East
• Df         Central Asia, China
• Dg        East, South-East Asia, India
• Dh        America
• Di         North America
• Dia       United States of America
• Dib       Canada
• Dj         Central America, Caribbean
• Dk        South America
• Dl         Atlantic Ocean, Atlantic islands
• Dm       Africa
• Dn        North Africa
• Do        West, Central Africa
• Dp        East Africa
• Dq        Southern Africa

          Applied Geology

• Ea        Basics
• Eb        Cartography
• Ec        Aerial geology, remote sensing
• Ed        Engineering geology
• Ee        Hydrogeology
• Ef         Economic geology, mineral resources
• Efa       Law of mineral resources
• Eg        Geomathematics, geostatistics
• Eh        Computational geology
• Eha      Geoinformation systems
• Ei         Sampling
• Ej         Prospection, exploration

          Mineral Deposits (l) - Ores

• Fa        Mineral deposits - general
• Fb        Ore deposits
• Fba      Handbook of stratabound & stratiform ore deposits
• Fc        Several metals
• Fd        Iron
• Fe        Manganese
• Ff         Chromium, nickel, cobalt, molybdenum, tungsten, vanadium (steel metals)
• Fg        Copper
• Fh        Lead, zinc, tin
• Fi         Precious metals
• Fj         Gold
• Fk        Aluminium, magnesium
• Fl         Uranium, thorium
• Fm       Other metals, rare earths

          Mineral Deposits (ll) - Nonmetallics

• Ga        Petroleum geology - general
• Gb        Petroleum -miscellaneous
• Gc        Oil shale, minerals wax, asphalt
• Gd        Petroleum exploration
• Ge        Petroleum - technology, industry, economy
• Gf         Coal - geology, petrography
• Gg        Coal - deposits, exploration
• Gh        Coal - chemistry, technology
• Gha      Collected papers on the knowledge of coal
• Gi         Coal - economy, resources
• Gj         Industrial minerals
• Gk        Evaporites
• Gl         Aggregates
• Gm       Graphite
• Gn        Asbestos
• Go        Phosphates, Nitrates
• Gp        Other mineral resources

          Geochemistry

• Ha        Geochemistry - general
• Hb        Geochemistry -miscellaneous
• Hc        Biochemistry
• Hd        Fluids
• He        Geochemical exploration
• Hf         Isotope geology

         Geophysics

• Ia        Geophysics - general
• Ib        Geophysics -miscellaneous
• Ic        Geophysical prospection and exploration
• Id        Geothermal energy
• Ie        Earthquakes

        Atlanten, Grossformate

• J         Atlases
• J         Large Format
  

Ka    Materials science

• Kaa      Materials - general
• Kab      Mineral raw materials, mineral processing
• Kac      Fracture mechanics, corrosion, wear, repair
• Kad      Materials - congresses
• Kae      Materials - series publications
• Kaf       ASTM
• Kag      Reference works, dictionaries

Kb      Testing methods

• Kba      Materials testing - general
• Kbb      Chemical, thermal, mechanical analysis
• Kbc       Light microscopy (incl. ore microscopy)
• Kbd       Electtron microscopy, microprobe
• Kbe       X-ray analysis
• Kbf        Spectroscopy (luminescence fluorescence, AAS)

Kc      Ceramics

• Kca      Ceramics - general, materials science
• Kcb      Ceramic raw materials
• Kcc      Ceramic technology, design
• Kcd      Specific ceramic materials, monographs
• Kce      Electric and electronic ceramics
• Kcf       Other ceramic applications (incl. bioceramics, functional ceramics)
• Kcg      Fibres, composite materials
• Kch      Enamel, glazes, coatings
• Kci       Porcelain, fine ceramics
• Kcj       Arts and crafts
• Kck      Ceramic congresses
• Kcl       Ceramic - series publications
• Kcm     Ceramics - reference works

Kd      Glass

• Kda      Glass - general, materials science
• Kdb      Glass ceramics
• Kdc      Amorphous materials
• Kdd      Glass Art
• Kde      Glass - series publications, congresses

Ke      Building materials

• Kea      Building materials - general
• Keb      Building materials - chemistry, physics
• Kec      Insulation, conservation, damage, preservation
• Ked      Cement bulletin
• Kee      Construction technology, recycling
• Kef       Masonry, bricks, plaster
• Keg      Mauerwerkskalender
• Keh      Zl-Jahrbuch, Ziegeleittechn. Jahrbuch
• Kei       Cement
• Kej       Cement - series publication
• Kek      Concrete
• Kel       Concrete - additives
• Kem     Betonkalender
• Ken      Business company publications
• Keo      Standards, reference works / building materials
• Kep      lRB Literaturauslese

Kf     Refractory materials

• Kfa      Refractories - general
• Kfb      Refractories - congresses
• Kfc      Refractories - series publications
• Kfd      Reference works

Kg    Industrial furnaces, thermal process technology, energy process engineering

          Mineralogy

• La        General mineralogy
• Lb        Mineralogy - miscellaneous
• Lc        Crystallography
• Ld        Crystallographic tables
• Le        Mineral chemistry
• Lf         Special mineralogy
• Lfa       Silicates, zeolithes
• Lg        Applied mineralogy
• Lh        Gemstones
• Li         Mineral identification, illustrated books
• Lj         Reference works - mineralogy and petrology

          Petrology

• Ma        Petrology - general
• Mb        Petrology - miscellaneous
• Mc        Applied petrology
• Md        Soil science
• Me        Magmatites
• Mf         Metamorphites
• Mg        Sedimentary rocks - general
• Mga      Carbonates
• Mgb      Clastic sediments (breccia, conglomerates, sandsone, heavy minerals)
• Mgc      Clay, argillaceous rocks, fine-grained sediments

          Palaeontology

• Na        Palaeontology - general
• Nb        Palaeoclimate, climate, palaeohydrology
• Nc        Palaeogeography, palaeoecology
• Nd        Palaeozoology, zoology
• Ne        Invertebrates
• Nf         Vertebrates
• Nfa       Primates
• Ng        Biostratigraphy, index fossils, micropalaeontology
• Nh        Palaeobotany, botany
• Ni         Evolution, biology, trace fossils
• Nj         Reference works, series publication
• Nk        Illustrated books, collecting, preparation

          Environment

• Oa        Environmental sciences
• Ob        Environmental geology
• Oc        Environmental chemistry
• Od        Environment - soil
• Oe        Environment - water
• Of         Environment - air, climate
• Og        Waste management, recycling
• Oga      Waste deposits, contaminated sites
• Ogb      Abfallwirtschaft in Forschung und Praxis
• Ogc      Radioactive waste, nuclear power
• Oh        Natural disasters
• Oi         Land use, geotope conservation

          Basic and complementary sciences

• Pa        Mathematics
• Pb        Data processing, electronics
• Pba      Internet
• Pc        Physics, electrical engineering
• Pd        Chemistry
• Pe        Metallurgy, engineering sciences
• Ph        Geography, meteorology
• Pi         Travelling, travel guides
• Pj         History, prehistory
• Pk        Economics, business economics
• Pka      Energy management
• Pl         Dictionaries, encyclopaedia
• Pm       Miscellaneous

          Information management

• Qa        Scientific working
• Qb        Information broking - libraries
• Qc        Bibliographies, catalogues

R     Statistics, hydrographic publications

          Congresses, conferences, symposia

• Sa        International geological congress
• Sb        Other congress publications