Photomicroscopy of salt in petroleum,
by Lloyd F Christianson and J. W. Horne.

APA Citation

Christianson, L. F., Horne, J. W.. (1942). Photomicroscopy of salt in petroleum. Washington, D.C.: U.S. Govt. Print. Off., Bureau of Mines.

MLA Citation

Christianson, Lloyd F, and Joseph W. Horne. Photomicroscopy of Salt In Petroleum. Washington, D.C.: U.S. Govt. Print. Off., Bureau of Mines, 1942.

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