en
550 Earth sciences & geology
552 Petrology
fr
550 Sciences de la Terre et géologie
552 Pétrologie
es
550 Ciencias de la tierra y geología
552 Petrología
sv
550 Geovetenskaper & geologi
552 Petrologi
pt
550 Ciências da terra e geologia
552 Petrologia
ru
550 Науки о Земле и геология
552 Петрология
zh
550 地球科学 & 地质学
552 岩石学
ar
550 علوم الأرض والجيولوجيا.
552 علم الصخور.
af
550 Aardwetenskappe & geologie
552 Petrologie; Gesteentekunde
no
550 Geovitenskapelige fag og geologi
552 Petrologi
de
550 Geowissenschaften, Geologie
552 Petrologie
gd
550 Saidheansan talmhainn & geòlas
552 Petreòlas
Dewey Decimal Classification
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