Wilson, J. (1982). Proceedings of the national water conference on water quality and the clean water act. Academy of Natural Sciences of Philadelphia.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিWilson, James. Proceedings of the National Water Conference on Water Quality and the Clean Water Act. Pennsylvania: Academy of Natural Sciences of Philadelphia, 1982.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিWilson, James. Proceedings of the National Water Conference on Water Quality and the Clean Water Act. Academy of Natural Sciences of Philadelphia, 1982.
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