Ontario Industrial Waste Conference Toronto, Ont., & Ontario. Ministry of the Environment. (1986). Proceedings of the Thirty-third Ontario Industrial Waste Conference: Held at the Prince Hotel Toronto, Ontario June 15-18, 1986 : sponsored by the Ontario Ministry of the Environment. Ministry of the Environment.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOntario Industrial Waste Conference Toronto, Ont., और Ontario. Ministry of the Environment. Proceedings of the Thirty-third Ontario Industrial Waste Conference: Held at the Prince Hotel Toronto, Ontario June 15-18, 1986 : Sponsored by the Ontario Ministry of the Environment. [Toronto]: Ministry of the Environment, 1986.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOntario Industrial Waste Conference Toronto, Ont., और Ontario. Ministry of the Environment. Proceedings of the Thirty-third Ontario Industrial Waste Conference: Held at the Prince Hotel Toronto, Ontario June 15-18, 1986 : Sponsored by the Ontario Ministry of the Environment. Ministry of the Environment, 1986.