A simplified economic filter for open-pit gold-silver mining in the United States /

Bibliographic Details
Main Author:	Singer, D. A.
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Menzie, W. D., Long, Keith R.
Format:	Government Document Microform Book
Language:	English
Published:	[Resron, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 1998.
Series:	U.S. Geological Survey open-file report ; 98-207.
Subjects:	Gold ores > Economic aspects. Silver ores > Economic aspects. Gold mines and mining > Economic aspects. Silver mines and mining > Economic aspects.