Soapstone

Author:	Hughes, H. Herbert
Year:	1932
Document Type:	USBI
Issuing Agency:	U.S. Dept. of Commerce, Bureau of Mines,
SUDOC:	C 22.11:6563
Series:	Information circular / Bureau of Mines ;
Report Number:	6563
Subject:	Soapstone
Link:	https://hdl.handle.net/2027/mdp.39015074128169