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m devereux carter
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An assessment of coal resources available for development
M. Devereux Carter · Books and Open-File Reports Section [distributor]
Sayfa sayısı yok · 1989
Coal mines and mining / Coal reserves
Documentation of data format and content to accompany magnetic tape copies of various data files of the National Coal Resources Data System (NCRDS)--ECOAL, WCOAL, NEWCOAL, BMALYT, and USCHEM
M. Devereux Carter · U.S. Dept.of the Interior, U. S. Geological Survey
Sayfa sayısı yok · 1981
Mines and mineral resources / Information storage and retrieval systems / Data processing / Coal