Anthracite mechanical mining investigations.

Author:	Landsidle, Clayton A.
Additional Authors:	Hartley, John C., Buch, John W.
Year:	1953
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:4978
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	4978
Subjects:	Coal-mining machinery
	Anthracite coal industry
Link:	https://hdl.handle.net/2027/mdp.39015078478297