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

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