Graphite :natural and manufactured

Author:	Gwinn, G. Richards.
Year:	1943
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7266
Series:	Information circular ;
Report Number:	7266
Subject:	Graphite
Link:	https://hdl.handle.net/2027/mdp.39015074127088