Sedimentary phosphate resource classification system of the U.S. Bureau of Mines and the U.S. Geological Survey.

Bibliographic Details
Corporate Authors:	Geological Survey (U.S.), United States. Bureau of Mines
Format:	Government Document Book
Language:	English
Published:	[Reston, Va.] : U.S. Dept. of the Interior, Geological Survey ; 1982.
Series:	Geological Survey circular ; 882.
Subjects:	Sediments (Geology) > United States > Classification. Phosphates > United States > Classification.

Evans: US Documents (Annex 5th floor)