Ellis, B. G., Erickson, A. E., & Leach, L. E. (1981). Cropping systems for treatment and utilization of municipal wastewater and sludge. U.S. Environmental Protection Agency, Robert S. Kerr Environmental Research Laboratory.
Chicago Style (17th ed.) CitationEllis, Boyd G., Anton Earl Erickson, and Lowell E. Leach. Cropping Systems for Treatment and Utilization of Municipal Wastewater and Sludge. Ada, OK: U.S. Environmental Protection Agency, Robert S. Kerr Environmental Research Laboratory, 1981.
MLA (9th ed.) CitationEllis, Boyd G., et al. Cropping Systems for Treatment and Utilization of Municipal Wastewater and Sludge. U.S. Environmental Protection Agency, Robert S. Kerr Environmental Research Laboratory, 1981.
Warning: These citations may not always be 100% accurate.