Comparison of the triangular, polygonal, and a statistical method of computing grade and tonnage of ore for the Silver Bell Oxide porphyry copper deposit /
by Richard F. Hewlett.
APA Citation
Hewlett, R. F., University of Arizona. College of Mines., Bear Creek Mining Company., United States. Bureau of Mines. (1970). Comparison of the triangular, polygonal, and a statistical method of computing grade and tonnage of ore for the Silver Bell Oxide porphyry copper deposit. [Washington, D.C.]: U.S. Dept. of Interior, Bureau of Mines.
MLA Citation
Hewlett, Richard F, University of Arizona. College of Mines, Bear Creek Mining Company, and United States. Bureau of Mines. Comparison of the Triangular, Polygonal, And a Statistical Method of Computing Grade And Tonnage of Ore for the Silver Bell Oxide Porphyry Copper Deposit. [Washington, D.C.]: U.S. Dept. of Interior, Bureau of Mines, 1970.
Warning: These citations may not always be complete (especially for serials).