Excavation operations
By: U.S. Dept. of Labor, Bureau of Labor Standards
Series: Bulletin - U.S. Dept. of Labor, Bureau of Labor Standards -- no. 257; Report - Occupational hazards to young workers -- no. 17; Occupational hazards to young workers -- no. 17; Bulletin (United States. Bureau of Labor Standards) -- 257
Publisher: The Bureau : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1963
Place of publication: Washington, D.C
Language: eng
Number of pages: 17
Subjects: Excavation -- Safety measures; Youth -- Employment -- United States; Industrial safety -- United States