Recovery of Coal From Washery Refuse
Subtitle: Some Examples of the Effect of Continuous Mining Machines on Preparation Problems.
Contributors: Geer, M.; Fennessy, F.; Yancey, H.
Series: Report of investigations (United States. Bureau of Mines) -- 5152
Publisher: s.n
Published: 1956
Place of publication: S.l
Language: eng
Notes: 1