Carbonizing Properties and Petrographic Composition of Thick Freeport-Bed Coal From Harmar Mine, Harmarville, Allegheny County,  pa., and the Effect of Blending This Coal with Pocahontas no.3
Subtitle: and no.4-Bed Coals.
Contributors: Davis, J.; Reynolds, D.; Sprunk, G.
Series: Technical paper (United States. Bureau of Mines) -- 655
Publisher: s.n
Published: 1943
Place of publication: S.l
Language: eng
Notes: 1