Testing of a diesel-powered impact cutting head for hard-rock mining /
by P.D. Kovscek, C.D. Taylor, and H. Handewith.

APA Citation

Kovscek, P. D. (Paul D.)., Handewith, H. (Howard)., Taylor, C. D. (Charles Darrell)., United States. Bureau of Mines. (1991). Testing of a diesel-powered impact cutting head for hard-rock mining. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines.

MLA Citation

Kovscek, P. D. (Paul D.), H. (Howard) Handewith, Charles D. (Charles Darrell) Taylor, and United States. Bureau of Mines. Testing of a Diesel-powered Impact Cutting Head for Hard-rock Mining. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1991.