Preliminary economics of mining a thick coal seam by dragline, shovel-truck, and scraper mining systems / by Michael J. Bertoldi.
1977
TN23 .U71 no.8761 (Mapit)
Available at General Collection
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Details
Title
Preliminary economics of mining a thick coal seam by dragline, shovel-truck, and scraper mining systems / by Michael J. Bertoldi.
Author
Bertoldi, Michael J.
Publication Details
[Washington] : Dept. of the Interior, 1977.
Language
English
Description
[3], 27 p. : ill. ; 27 cm.
Call Number
TN23 .U71 no.8761
GPO Item No.
637-A
Added Corporate Author
United States. Bureau of Mines.
Series
Information circular (United States. Bureau of Mines) ; 8761.
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