COALVAL, a prefeasibility software package for evaluating coal properties using Lotus 1-2-3, release 2.2 :documentation and user's guide

Author: Plis, Matthew N.
Additional Authors: Teeters, Dale D., Rohrbacher, Timothy J.
Year: 1993
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
Series: Information circular / Bureau of Mines ;
Report Number: 9348
Subjects: Coal mines and mining--Valuation--Data processing
COALVAL
Link: https://hdl.handle.net/2027/mdp.39015078458851

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