Basic estimated capital investment and operating costs for coal strip mines
By: by Sidney Katell and E. L. Hemingway.
Contributors: Hemingway, E. L. joint author.; United States. Bureau of Mines
Series: United States. Bureau of Mines. Information circular -- 8661; Information circular (United States. Bureau of Mines) -- 8661.
Publisher: U.S. Bureau of Mines
Published: 1974
Place of publication: [Washington]
Language: eng
Number of pages: 31
Subjects: Coal mines and mining -- Cost of operation.; Strip mining -- Cost of operation.