Working safely in trenches : Trabajando de manera segura en una trinchera.

Bibliographic Details
Corporate Author:	United States. Occupational Safety and Health Administration
Format:	Government Document Book
Language:	English
Published:	Washington, D.C. : U.S. Dept. of Labor, Occupational Safety and Health Administration, [2005?]
Subjects:	Construction workers > Safety measures. Industrial safety > United States.
Online Access:	https://purl.fdlp.gov/GPO/LPS85924