Progress reports - metallurgical division.
[No.] 39.,
Ore-testing-studies : [part] II. primarily precious metals /
by Edmund S. Leaver, Jesse A. Woolf, and A.P. Towne.

APA Citation

Leaver, E. Spriggs., Towne, A. P., Woolf, J. A. (1940). Progress reports - metallurgical division. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines.

MLA Citation

Leaver, Edmund Spriggs, 1873-, A. P Towne, and J. A Woolf. Progress Reports - Metallurgical Division. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1940.

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