Tripoli

Author:	Metcalf, Robert W.
Year:	1946
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7371
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	7371
Subjects:	Silica--United States--Statistics
	Tripoli (Mineral)--Statistics
	Silicate industry--United States--Statistics
Link:	https://hdl.handle.net/2027/mdp.39015074127872