Relative effects of grouped physical variables on the revenue-cost system of a lead-zinc mining operation

Author: Dawes, Richard E.
Year: 1969
Document Type: BMRA
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.23:7311
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number: 7311
Subjects: Zinc mines and mining--Cost of operation
Lead mines and mining--Cost of operation
Link: https://hdl.handle.net/2027/mdp.39015077553983

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