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Permissible Mine Equipment Approved by the Bureau of Mines During 1963-64
Frank R. LeeRobert L. Evans
其他書名
A Supplement to Bulletin 543 and Information Circular 8220
出版U.S. Department of the Interior, Bureau of Mines, 1966
URLhttp://books.google.com.hk/books?id=JQIT2sDFQpYC&hl=&source=gbs_api
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