Não informado. Notes on Water Pollution. Water Pollution Research Laboratory, Department of Scientific and Industrial Research.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Notes on Water Pollution. London: Water Pollution Research Laboratory, Department of Scientific and Industrial Research.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Notes on Water Pollution. Water Pollution Research Laboratory, Department of Scientific and Industrial Research.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.