A basic computer program for computing grade and tonnage or ore using statistical and polygonal methods /
by Richard F. Hewlett.
APA Citation
Hewlett, R. F. (1963). A basic computer program for computing grade and tonnage or ore using statistical and polygonal methods. [Washington, D.C.]: Bureau of Mines.
MLA Citation
Hewlett, Richard F. A Basic Computer Program for Computing Grade And Tonnage Or Ore Using Statistical And Polygonal Methods. [Washington, D.C.]: Bureau of Mines, 1963.
Warning: These citations may not always be complete (especially for serials).