http://dewey.info/scheme/edition/e23/ en
547 Organic chemistry
547.7 Macromolecules and related compounds
547.70457 Macromolecules--electrochemistry 547.71 Terpenes and essential oils 547.77 Lipids 547.78 Carbohydrates
http://dewey.info/scheme/edition/e22/ de
547 Organische Chemie
547.7 Makromoleküle und verwandte Verbindungen
547.70457 Makromoleküle—Elektrochemie 547.71 Terpene und etherische Öle 547.77 Lipide 547.78 Kohlenhydrate
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