http://dewey.info/scheme/a14/ en
150.9 Historical, geographic, persons treatment
150.92 Psychologists
http://dewey.info/scheme/a14/ vi
150.9 Lịch sử, địa lý, con người
150.92 Nhà tâm lý học
http://dewey.info/scheme/a14/ it
150.9 Storia, geografia, persone
150.92 Psicologi
http://dewey.info/scheme/edition/e23/ en
150.9 History, geographic treatment, biography
150.92 Psychologists
http://dewey.info/scheme/edition/e22/ de
150.9 Geschichte, geografische Behandlung, Biografien
150.92 Psychologen
Dewey Decimal Classification
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