Estimating direct costs of development in a block caving mine /
by Nils A. Eilertsen.
APA Citation
Eilertsen, N. A., United States. Bureau of Mines. (1975). Estimating direct costs of development in a block caving mine. [Washington]: Bureau of Mines.
MLA Citation
Eilertsen, Nils A, and United States. Bureau of Mines. Estimating Direct Costs of Development In a Block Caving Mine. [Washington]: Bureau of Mines, 1975.
Warning: These citations may not always be complete (especially for serials).