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Preparation Characteristics of Coal from Greene County, Pa
T. E. Gray
, Eugene Robert Palowitch
· 1958
Preparation Characteristics of Coal from Marion County, W. Va
T. E. Gray
, Eugene Robert Palowitch
· 1960
Preparation Characteristics of Coal from Monongalia County, West Virginia
T. E. Gray
, Eugene Robert Palowitch
· 1960
Preparation Characteristics of Coal from Boone County, W. Va
T. E. Gray
, Eugene Robert Palowitch
· 1961
Preparation Characteristics of Coal from Washington County, Pennsylvania
T. E. Gray
, Eugene Robert Palowitch
· 1959
Preparation Characteristics of Coal from Butler County, Pennsylvania
T. E. Gray
, Eugene Robert Palowitch
· 1960
Washability Characteristics of the Lower Hartshorne (Spadra) Coalbed Near Clarksville, Ark
Eugene Robert Palowitch
, T. E. Gray
· 1962
Using a Centrifuge for Float-and-sink Testing Fine Coal
Eugene Robert Palowitch
, Thomas M. Nasiatka
· 1961
Preparation Characteristics of Coal from Harrison County, W. Va
T. E. Gray
, Eugene Robert Palowitch
· 1961
Preparation Characteristics of Coal from Preston County, W. Va
Thomas E. Gray
, Eugene Robert Palowitch
· 1961
