Silicosis prevention; dust control in foundries. United States Department of labor. Frances Perkins, secretary. Division of labor standards. Verne A. Zimmer, director.

By: Material type: TextTextPublication details: Washington, U.S. Govt. print. off., 1939.Description: iii, 25 p. illus., diagrs. 23 cmSubject(s): LOC classification:
  • HD7264 .U6 1939a
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"Selected references": p. 25.

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