Não informado. (1987). Journal of the Institution of Water and Environmental Management. Institution of Water and Environmental Management.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Journal of the Institution of Water and Environmental Management. London: Institution of Water and Environmental Management, 1987.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Journal of the Institution of Water and Environmental Management. Institution of Water and Environmental Management, 1987.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.