Hydraulic coal mining research :equipment and preliminary tests

Author:	Wallace, Joseph J.
Additional Authors:	Ackerman, M. J., Price, George Cletus.
Year:	1961
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:5915
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	5915
Subjects:	Coal mines and mining
	Coal--Research
	Hydraulic mining
Link:	https://hdl.handle.net/2027/mdp.39015078529867