http://dewey.info/scheme/edition/e23/ en
639 Hunting, fishing, conservation, related technologies
639.7 Harvest and culture of invertebrates other than mollusks and crustaceans
639.75 Worms
http://dewey.info/scheme/edition/e22/ de
639 Jagd, Fischfang, Erhaltung, verwandte Bereiche
639.7 Fang und Zucht anderer Wirbelloser als Weich- und Krebstiere
639.75 W├╝rmer
Dewey Decimal Classification
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