Environmental Council of the States (U.S.). Sludge Management Task Committee of the Environmental Council, Environmental and Water Resources Institute (U.S.), ebrary, Inc, & Tyagi, R. D. (2009). Sustainable sludge management: Production of value added products. American Society of Civil Engineers.
Чикаго стиль цитування (17-те видання)Environmental Council of the States (U.S.). Sludge Management Task Committee of the Environmental Council, Environmental and Water Resources Institute (U.S.), Inc ebrary, та R. D. Tyagi. Sustainable Sludge Management: Production of Value Added Products. Reston, VA: American Society of Civil Engineers, 2009.
Стиль цитування MLA (9-ме видання)Environmental Council of the States (U.S.). Sludge Management Task Committee of the Environmental Council, et al. Sustainable Sludge Management: Production of Value Added Products. American Society of Civil Engineers, 2009.