Yazar
Robert G Reese
2 cilt bulundu.
Cilt sonuçları
Silver
Robert G Reese · U.S. Dept. of the Interior, Bureau of Mines
11 sayfa · 1983
Mines and mineral resources / Silver / Silver mines and mining
Coal recovery from underground bituminous coal mines in the United States, by mining method
Robert G. Reese · Dept. of the Interior, Bureau of Mines : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
30 sayfa · 1978
Coal mines and mining / Bituminous coal