Principles of the mineral resource classification system of the U.S. Bureau of Mines and U.S. Geological Survey.

Bibliographic Details
Corporate Authors:	United States. Bureau of Mines (Author), Geological Survey (U.S.) (Author)
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : U.S. Bureau of Mines : U.S. Geological Survey, 1976.
Series:	Geological Survey bulletin ; 1450-A.
Subjects:	Mines and mineral resources > United States > Classification. Minerals > United States > Classification. Minerals. Classification.
Online Access:	https://purl.fdlp.gov/GPO/gpo75262