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- catalog contributor b8908938.
- catalog contributor b8908939.
- catalog created "1939.".
- catalog date "1939".
- catalog date "1939.".
- catalog dateCopyrighted "1939.".
- catalog extent "vii, 24 p.".
- catalog isPartOf "Bulletin (United States. Bureau of Labor Standards) ; no. 31.".
- catalog isPartOf "U.S. Dept. of labor. Division of labor standards ; Bulletin no. 31".
- catalog issued "1939".
- catalog issued "1939.".
- catalog language "eng".
- catalog publisher "Washington, U.S. Govt. print. off.,".
- catalog spatial "United States.".
- catalog subject "Labor bureaus United States.".
- catalog subject "Occupational Health Services".
- catalog subject "Occupational diseases.".
- catalog title "The work of an industrial hygiene division in a state department of labor ...".
- catalog type "text".