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Author
McMahan, Arel B.
Published
Spokane, Wash. : Western Field Operations Center, U.S. Dept. of the Interior, Bureau of Mines, 1986.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Dean, Walter E.
Published
[Denver, CO] : U.S. Geological Survey, 1996.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online