APA (7th ed.) Citation

Kohl, A. L., & Riesenfeld, F. C. (1985). Gas purification (4a. ed.). Gulf.

Chicago Style (17th ed.) Citation

Kohl, Arthur L., and Fred C. Riesenfeld. Gas Purification. 4a. ed. Houston: Gulf, 1985.

MLA (9th ed.) Citation

Kohl, Arthur L., and Fred C. Riesenfeld. Gas Purification. 4a. ed. Gulf, 1985.