Pointers on the storage of coal /
by J.F. Barkley.
APA Citation
Barkley, J. F. (John Ferdinand). (1942). Pointers on the storage of coal. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines.
MLA Citation
Barkley, J. F. (John Ferdinand), 1888-. Pointers On the Storage of Coal. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1942.
Warning: These citations may not always be complete (especially for serials).