Use of western magnetite as ship ballast

Author:	Severy, C. L.
Year:	1948
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7427
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	7427
Subjects:	Magnetite
	Ballast (Ships)
Link:	https://hdl.handle.net/2027/mdp.39015077577727