Preparation characteristics of coal occurring in Indiana County, Pa.

Author:	Crentz, William L.
Additional Authors:	Bailey, A. L., Steele, Fern.
Year:	1951
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:4763
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	4763
Subjects:	Coal preparation--Pennsylvania--Indiana County
	Coal--Pennsylvania--Indiana County--Sampling
Link:	https://hdl.handle.net/2027/mdp.39015078488411