APA (7th ed.) Citation

Persson, S. P. E., & Bartlett, H. D. (1981). Utilization of farm-produced biogas. American Society of Agricultural Engineers.

Chicago Style (17th ed.) Citation

Persson, Sverker P. E., and Howard D. Bartlett. Utilization of Farm-produced Biogas. St. Joseph, Mich.: American Society of Agricultural Engineers, 1981.

MLA (9th ed.) Citation

Persson, Sverker P. E., and Howard D. Bartlett. Utilization of Farm-produced Biogas. American Society of Agricultural Engineers, 1981.