Computer program for economic evaluations of underground bituminous coal mines

Author:	Miller, Robert A.
Year:	1971
Document Type:	USBI
Issuing Agency:	U.S. Bureau of Mines,
SUDOC:	I 28.27:8513
Series:	Information Circular / Bureau of Mines;
Report Number:	8513
Subjects:	Bituminous coal
	Coal mines and mining--Computer programs
Link:	https://hdl.handle.net/2027/mdp.39015078456756