http://dewey.info/scheme/a14/ en
363 Other social problems and services
363.6 Public utilities and related services
http://dewey.info/scheme/a14/ vi
363 Các vấn đề xã hội và dịch vụ xã hội khác
363.6 Tiện ích công cộng và dịch vụ liên quan
http://dewey.info/scheme/a14/ it
363 Altri problemi e servizi sociali
363.6 Servizi pubblici e attività connesse
http://dewey.info/scheme/edition/e23/ en
363 Other social problems and services
363.6 Public utilities and related services
363.6092 Public utility workers 363.61 Water supply 363.63 Gas 363.68 Park and recreation services 363.69 Historic preservation
Dewey Decimal Classification
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