An edition of Basic estimated capital investment and operating costs for underground bituminous coal mines (1974)
Basic estimated capital investment and operating costs for underground bituminous coal mines
mines with annual production of 1.06 to 4.99 million tons from a 72-inch coalbed
By Sidney Katell
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Publish Date
1976
Publisher
U.S. Dept. of the Interior, Bureau of Mines : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Language
eng
Pages
41
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