International strategic minerals inventory summary report : niobium (columbium) and tantalum /

Bibliographic Details
Main Author:	Crockett, R. N.
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Sutphin, David M.
Format:	Government Document Book
Language:	English
Published:	[Washington, D.C.?] : U.S. G.P.0. ; 1993.
Series:	U.S. Geological Survey circular ; 930-M.
Subjects:	Niobium ores. Tantalum ores. Strategic materials. Raw materials.

by Crockett, R. N., Sutphin, David M.
Published 1993

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