Classification and Tabling of Table Middlings at the Colta Coal Washery, Flat Creek, Ala.
Contributors: Gandrud, B.W.; Coe, G.D.; Hager, H.J.
Series: Report of investigations (United States. Bureau of Mines) -- 3448
Publisher: s.n
Published: 1939
Place of publication: S.l
Language: eng
Notes: 1