Basic estimated capital investment and operating costs for coal strip mines /
by Sidney Katell and E.L. Hemingway.
APA Citation
Katell, S., Hemingway, E. L.. (1974). Basic estimated capital investment and operating costs for coal strip mines. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines.
MLA Citation
Katell, Sidney, and E. L. Hemingway. Basic Estimated Capital Investment And Operating Costs for Coal Strip Mines. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1974.
Warning: These citations may not always be complete (especially for serials).