Dangers to workers from dusts and fumes and methods of protection
著者
書誌事項
Dangers to workers from dusts and fumes and methods of protection
（Bulletin / Bureau of Labor Statistics, whole no. 127）（Industrial accidents and hygiene series, no. 3）
G.P.O., 1913
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注記
At head of title: U.S. Department of Labor, Bureau of Labor Statistics
"By William C. Hanson"--P. 7