APA (7th ed.) Citation

Karn, F. S., Friedel, R. A., & Sharkey, A. G. (1970). Diffusion studies of light hydrocarbon gases through coal. U.S. Dept. of Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Karn, F. S., Robert A. Friedel, and A. G. Sharkey. Diffusion Studies of Light Hydrocarbon Gases Through Coal. [Washington, D.C.]: U.S. Dept. of Interior, Bureau of Mines, 1970.

MLA (9th ed.) Citation

Karn, F. S., et al. Diffusion Studies of Light Hydrocarbon Gases Through Coal. U.S. Dept. of Interior, Bureau of Mines, 1970.