http://dewey.info/scheme/edition/e23/ en
546 Inorganic chemistry
546.3 Metals, metallic compounds, alloys
546.31 Metallic elements 546.32 Bases 546.34 Salts 546.38 Alkali metals (Group 1) 546.39 Alkaline-earth metals (Group 2)
http://dewey.info/scheme/edition/e22/ de
546 Anorganische Chemie
546.3 Metalle, Metallverbindungen, Legierungen
546.31 Metallische Elemente 546.32 Basen 546.34 Salze 546.38 Alkalimetalle (Gruppe 1) 546.39 Erdalkalimetalle (Gruppe 2)
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