National Conference on Individual Onsite Wastewater Systems (Ann Arbor, Mich.), Technology Transfer Program (U.S.), National Sanitation Foundation (U.S.), & McClelland, N. I. (1977). Individual onsite wastewater systems: Proceedings of the second national conference 1975. Ann Arbor Science Publishers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Conference on Individual Onsite Wastewater Systems (Ann Arbor, Mich.), Technology Transfer Program (U.S.), National Sanitation Foundation (U.S.), و Nina I. McClelland. Individual Onsite Wastewater Systems: Proceedings of the Second National Conference 1975. Ann Arbor, Mich.: Ann Arbor Science Publishers, 1977.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)National Conference on Individual Onsite Wastewater Systems (Ann Arbor, Mich.), et al. Individual Onsite Wastewater Systems: Proceedings of the Second National Conference 1975. Ann Arbor Science Publishers, 1977.