The Economics of byproduct metals(in two parts). 1. Copper system

Additional Authors:	Petrick, Alfred., Starch, Karl E., Bennett, Harold J., Weisner, Robert C.
Year:	1973
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:8569
Series:	Information circular / United States. Bureau of Mines ;
Report Number:	8569
Subjects:	Mineral industries--By-products
	Copper ores
Link:	https://hdl.handle.net/2027/mdp.39015078470377