Historical files from federal government mineral exploration-assistance programs, 1950 to 1974 : http://minerals.usgs.gov/dockets/ /

Bibliographic Details
Main Author:	Frank, David (David Gerard)
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Hendley, James W.
Format:	Government Document eBook
Language:	English
Published:	[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [2010]
Series:	Fact sheet (Geological Survey (U.S.)) ; 2010-3109.
Subjects:	Mines and mineral resources > United States > History. Natural resources > United States > Management > History.
Online Access:	https://purl.fdlp.gov/GPO/gpo8527

Available Online