Some economic phases of the carbon-black industry

Author:	Hopkins, G. R.
Year:	1927
Document Type:	USBI
Issuing Agency:	U.S. Dept. of Commerce, Bureau of Mines,
SUDOC:	C 22.11:6033
Series:	Information circular / United States Department of Commerce, Bureau of Mines ;
Report Number:	6033
Subjects:	Carbon--Manufactures
	Carbon
Link:	https://hdl.handle.net/2027/mdp.39015077569732