The work of an industrial hygiene division in a state department of labor ...
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TextSeries: United States. Bulletin ; no. 31.Publication details: Washington, U.S. Govt. print. off., 1939.Description: vii, 24 p. pl. 23 cmSubject(s): LOC classification: - HD7279.U6 N55
At head of title: United States Department of labor. Frances Perkins, secretary. Division of labor standards. Verne A. Zimmer, director.
A report based on data dealing with the Industrial hygiene division of the New York (State) Department of labor. cf. Foreword.
"By Jean A. Flexner." - Letter of transmittal.
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