Hein, M. E., Smith, R. J., & Vetter, R. L. (1975). Anaerobic digestion of beef manure and corn stover. American Society of Agricultural Engineers.
Chicago Style (17th ed.) CitationHein, M. E., Richard J. Smith, and R. L. Vetter. Anaerobic Digestion of Beef Manure and Corn Stover. St. Joseph, Mich.: American Society of Agricultural Engineers, 1975.
MLA (9th ed.) CitationHein, M. E., et al. Anaerobic Digestion of Beef Manure and Corn Stover. American Society of Agricultural Engineers, 1975.
Warning: These citations may not always be 100% accurate.