Annual report of the nonmetals division, fiscal year 1940

Author:	Ralston, Oliver C.
Additional Authors:	Conley, John E.
Year:	1940
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:3538
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	3538
Subjects:	Nonmetallic minerals
	Nonmetals
Link:	https://hdl.handle.net/2027/mdp.39015078491753