http://dewey.info/scheme/a14/ en
331.1 Labor force and market
331.11 Labor force
http://dewey.info/scheme/a14/ vi
331.1 Lực lượng lao động và thị trường
331.11 Lực lượng lao động
http://dewey.info/scheme/a14/ it
331.1 Forze di lavoro e mercato del lavoro
331.11 Forze di lavoro
http://dewey.info/scheme/edition/e23/ en
331.1 Labor force and market
331.11 Labor force
331.114 Qualifications 331.117 Systems of labor 331.118 Labor productivity 331.119 Labor force by industry and occupation
http://dewey.info/scheme/edition/e22/ de
331.1 Arbeitskräfte und Arbeitsmarkt
331.11 Arbeitskräfte
331.114 Qualifikationen und persönliche Merkmale 331.117 Arbeitssysteme 331.118 Arbeitsproduktivität 331.119 Arbeitskräfte nach Industrie und Beruf
Dewey Decimal Classification
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