Excavating and trenching operations
Contributors: United States. Occupational Safety and Health Administration
Edition: Rev. 1985
Publisher: U.S. Dept. of Labor, Occupational Safety and Health Administration
Published: 1985
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 20
Subjects: Excavation -- United States -- Safety measures; Trenching machinery -- Safety measures
Notes: Cover title

Shipping list no.: 85-888-P

"OSHA 2226."