Three USGS mafic rock reference samples, W-2, DNC-1, and BIR-1 /

Bibliographic Details

Main Author:	Flanagan, F. J. (Francis James), 1915-
Corporate Author:	Geological Survey (U.S.)
Format:	Government Document Book
Language:	English
Published:	[Reston, Va.] : U.S. Dept. of the Interior, Geological Survey ; 1984.
Series:	U.S. Geological Survey bulletin ; 1623.
Subjects:	Alkalic igneous rocks.