Zinc used for roofing

Author:	Van Barneveld, Charles Edwin,
Year:	1924
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:2652
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	2652
Subjects:	Zinc
	Roofing
	Roofing--Research--United States
	Zinc--Research
Link:	https://hdl.handle.net/2027/mdp.39015086547018