Pozzolanic raw materials resources in the central and western United States

Year:	1969
Document Type:	USBI
Issuing Agency:	U.S. Dept. of Interior, Bureau of Mines,
SUDOC:	I 28.27:8421
Series:	Information circular / Bureau of Mines ;
Report Number:	8421
Subjects:	Building materials--United States
	Pozzuolanas--United States
Link:	https://hdl.handle.net/2027/mdp.39015077578071