Design of an underground mine layout

Author:	Sharp, William R.
Year:	1974
Document Type:	BMRA
Issuing Agency:	U.S. Bureau of Mines,
SUDOC:	I 28.23:7828
Series:	Report of investigations / Bureau of Mines ;
Report Number:	7828
Subject:	Mining engineering--Computer programs
Links:	https://hdl.handle.net/2027/mdp.39015078538660
	no.7828