Rockey, D. A., Turnacliff, W., & Smith, R. J. (1978). A 1900 M3 digester for laying-hen manure, Iowa. American Society of Agricultural Engineers.
Chicago Style (17th ed.) CitationRockey, D. A., W. Turnacliff, and Richard J. Smith. A 1900 M3 Digester for Laying-hen Manure, Iowa. St. Joseph, Mich.: American Society of Agricultural Engineers, 1978.
MLA (9th ed.) CitationRockey, D. A., et al. A 1900 M3 Digester for Laying-hen Manure, Iowa. American Society of Agricultural Engineers, 1978.
Warning: These citations may not always be 100% accurate.