Flexner, Jean Atherton.

The work of an industrial hygiene division in a state department of labor ... - Washington, U.S. Govt. print. off., 1939. - vii, 24 p. pl. 23 cm. - U.S. Dept. of labor. Division of labor standards. Bulletin no. 31 . - United States. Bureau of Labor Standards. Bulletin ... no. 31. .

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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Labor bureaus--United States.
Industrial hygiene--United States.

HD7279.U6 / N55