Bulletin (United States. Bureau of Mines). no. 288, 1928
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Page : 106 pages
File Size : 14,20 MB
Release : 1928
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Page : 106 pages
File Size : 14,20 MB
Release : 1928
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Page : 92 pages
File Size : 48,2 MB
Release : 1936
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Page : 522 pages
File Size : 49,75 MB
Release : 1928
Category : Labor
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Page : 138 pages
File Size : 49,85 MB
Release : 1930
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Page : 86 pages
File Size : 31,76 MB
Release : 1938
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Author : United States. Bureau of Mines. Technical Library, Pittsburgh
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Page : 792 pages
File Size : 29,88 MB
Release : 1968
Category : Library catalogs
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Page : 1552 pages
File Size : 37,94 MB
Release : 1930
Category : Government publications
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Author : United States. Superintendent of Documents
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Page : 2556 pages
File Size : 32,2 MB
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Category : Government publications
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Author : United States. Superintendent of Documents
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Page : 2556 pages
File Size : 18,35 MB
Release : 1896
Category : Government publications
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Page : 1562 pages
File Size : 37,28 MB
Release : 1929
Category : Labor laws and legislation
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