Some of the welfare problems of the mining industry and what the Bureau of Mines has done about them /
- 出版日期：1939.
- 出版者：U.S. Dept. of Commerce, Bureau of Mines,
- 页数：41 p. :
- 出版地：Washington, D.C. :
- 第一责任说明：by D. Harrington.
- 尺寸：27 cm.
- 分类号：a725
MARC全文
02h0057732 20140520095050.0 s1939 dcuab fr |000|||eng | CNY200.00 NGL a725 Harrington, D. Some of the welfare problems of the mining industry and what the Bureau of Mines has done about them / by D. Harrington. Washington, D.C. : U.S. Dept. of Commerce, Bureau of Mines, 1939. 41 p. : ill., maps ; 27 cm. Information circular of Department of Commerce Bureau of Mines ; 7071-7080 Mines and mineral resources ; Mineral industries Safety measures. ; Mine safety. Information circular of Department of Commerce Bureau of Mines ; 7071-7080. aCN bNGL 010001 P 720.66 In3 v7071-7080 ; rCNY200.00 ; h1 yao008