Ontario Industrial Waste Conference Toronto & Ontario. Ministry of the Environment. (1983). Proceedings of the thirtieth Ontario Industrial Waste Conference held at the Prince Hotel, Toronto, Ontario, June 12-15, 1983. Ontario Ministry of the Environment.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ontario Industrial Waste Conference Toronto و Ontario. Ministry of the Environment. Proceedings of the Thirtieth Ontario Industrial Waste Conference Held at the Prince Hotel, Toronto, Ontario, June 12-15, 1983. [Toronto]: Ontario Ministry of the Environment, 1983.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ontario Industrial Waste Conference Toronto و Ontario. Ministry of the Environment. Proceedings of the Thirtieth Ontario Industrial Waste Conference Held at the Prince Hotel, Toronto, Ontario, June 12-15, 1983. Ontario Ministry of the Environment, 1983.