http://dewey.info/scheme/edition/e23/ en
306.4 Specific aspects of culture
306.46 Technology
306.461 Medicine and health
http://dewey.info/scheme/edition/e22/ de
306.4 Einzelne Aspekte von Kultur
306.46 Technik
306.461 Medizin und Gesundheit
Dewey Decimal Classification
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