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Grindability of Alabama coals /
by Ellis S. Hertzog and James R. Cudworth.

APA Citation

Hertzog, E. S., Cudworth, J. R. (1938). Grindability of Alabama coals. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines.

MLA Citation

Hertzog, Ellis S, and James R Cudworth. Grindability of Alabama Coals. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1938.

Warning: These citations may not always be complete (especially for serials).