APA (7th ed.) Citation

Hassan, A. E., Putnam, G. S., & Smith, N. (1975). Design and operation of a demonstration unit for methane generation. American Society of Agricultural Engineers.

Chicago Style (17th ed.) Citation

Hassan, Awatif El-Domiaty, George S. Putnam, and Norman Smith. Design and Operation of a Demonstration Unit for Methane Generation. St. Joseph, Mich.: American Society of Agricultural Engineers, 1975.

MLA (9th ed.) Citation

Hassan, Awatif El-Domiaty, et al. Design and Operation of a Demonstration Unit for Methane Generation. American Society of Agricultural Engineers, 1975.

Warning: These citations may not always be 100% accurate.