Experimental treatment of base-metal ores from California and Nevada /
by A.L. Engel and H.J. Heinen.
APA Citation
Engel, A. L., Heinen, H. J. (Harold J.). (1960). Experimental treatment of base-metal ores from California and Nevada. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines.
MLA Citation
Engel, Abraham L, and H. J. (Harold J.) Heinen. Experimental Treatment of Base-metal Ores From California And Nevada. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1960.
Warning: These citations may not always be complete (especially for serials).