Cut-and-fill stoping

Author:	Johnson, Charles H.
Additional Authors:	Gardner, E. D.
Year:	1933
Document Type:	USBI
Issuing Agency:	U.S. Dept. of Commerce, Bureau of Mines,
SUDOC:	C 22.11:6688
Series:	Information circular / United States Department of Commerce, Bureau of Mines ;
Report Number:	6688
Subject:	Stoping (Mining)
Link:	https://hdl.handle.net/2027/mdp.39015086485896