Carbonizing Properties and Petrographic Composition of Hazard No. 4 Coal from Columbus No. 4 Mine and High-temperature Carbonizing Properties of Hazard No. 7 Coal from Hardburly Mine, Perry County, Ky
Joseph Dana Davis · Dewey A. Reynolds · William Harlan Ode
1945 оны 1-р сар · U.S. Government Printing Office