Washability Study of the Black Creek Coal Bed at Yolande no. 6, Rockcastle, Ala.
Contributors: Gandrud, B.W.; Coe, G.D.; Mead, J.C.
Series: Report of investigations (United States. Bureau of Mines) -- 3450
Publisher: s.n
Published: 1939
Place of publication: S.l
Language: eng
Notes: 1