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ky symposium on surface coal mining and reclamation 6th 1979 louisville
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Papers presented before the Symposium on Surface Coal Mining and Reclamation, Coal Conference & Expo V, October 23-25, 1979, Kentucky Fair and Exposition Center, Louisville, Kentucky
Ky.) Symposium on Surface Coal Mining and Reclamation (6th 1979 Louisville · McGraw-Hill, Mining Informational Services
326 sayfa · 1979
Coal mines and mining / Congresses / Strip mining / Reclamation of land