Fracturing hard rock with nuclear explosives and extraction of ore by a modified block-caving method /
by W.R. Hardwick.

APA Citation

Hardwick, W. R. (William R.)., U.S. Atomic Energy Commission. San Francisco Operations Office., United States. Bureau of Mines. (1970). Fracturing hard rock with nuclear explosives and extraction of ore by a modified block-caving method. [Washington, D.C.]: U.S. Dept. of Interior, Bureau of Mines.

MLA Citation

Hardwick, W. R. (William R.), U.S. Atomic Energy Commission. San Francisco Operations Office, and United States. Bureau of Mines. Fracturing Hard Rock With Nuclear Explosives And Extraction of Ore by a Modified Block-caving Method. [Washington, D.C.]: U.S. Dept. of Interior, Bureau of Mines, 1970.