Trenching and excavation safety
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| Imprint: | [Washington, D.C.] : U.S. Dept. of Labor, Occupational Safety and Health Administration, [2011] |
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| Description: | 1 online resource ([2] p.). |
| Language: | English |
| Series: | OSHA factsheet OSHA factsheet. |
| Subject: | |
| Format: | E-Resource U.S. Federal Government Document Book |
| URL for this record: | http://pi.lib.uchicago.edu/1001/cat/bib/8622987 |