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- l49000048 contributor B12944493.
- l49000048 created "1949]".
- l49000048 date "1949".
- l49000048 date "1949]".
- l49000048 dateCopyrighted "1949]".
- l49000048 extent "ii, 11 p.".
- l49000048 isPartOf "Bulletin (United States. Bureau of Labor Standards) ; 109.".
- l49000048 isPartOf "U.S. Bureau of Labor Standards. Bulletin, no. 109".
- l49000048 issued "1949".
- l49000048 issued "1949]".
- l49000048 language "eng".
- l49000048 publisher "[Washington, U.S. Govt. Print. Off.,".
- l49000048 subject "HD7260 .P67 1949d".
- l49000048 subject "Industrial safety Congresses.".
- l49000048 title "State safety conferences, a guide.".
- l49000048 type "text".