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Cover of Basic estimated capital investment and operating costs for underground bituminous coal mines

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

Description: