Effects of moisture on float-and-sink testing of lignite /
by H. M. Cooper, E. C. Tarpley, and R. F. Abernethy.

APA Citation

Cooper, H. M., Abernethy, R. F., Tarpley, E. C. (1947). Effects of moisture on float-and-sink testing of lignite. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines.

MLA Citation

Cooper, H. M, R. F Abernethy, and E. C Tarpley. Effects of Moisture On Float-and-sink Testing of Lignite. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1947.