United States. Bureau of Mines. (1942). Carbonizing Properties and Petrographic Composition of Lower Hignite-Bed Coal from the Atlas Mine, Middlesboro, Bell County, KY. and the Effect of Blending this Coal with Pocahontas No. 3 and No. 4 Bed Coals. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Mines. Carbonizing Properties and Petrographic Composition of Lower Hignite-Bed Coal from the Atlas Mine, Middlesboro, Bell County, KY. and the Effect of Blending This Coal with Pocahontas No. 3 and No. 4 Bed Coals. [Washington]: [s.n.], 1942.
MLA (9th ed.) CitationUnited States. Bureau of Mines. Carbonizing Properties and Petrographic Composition of Lower Hignite-Bed Coal from the Atlas Mine, Middlesboro, Bell County, KY. and the Effect of Blending This Coal with Pocahontas No. 3 and No. 4 Bed Coals. [s.n.], 1942.