Mann, H. T., & Williamson, D. (1976). Water treatment and sanitation: A handbook of simple methods for rural areas in developing countries (Revised ed.). Intermediate Technology Publications.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিMann, H. T., এবং D. Williamson. Water Treatment and Sanitation: A Handbook of Simple Methods for Rural Areas in Developing Countries. Revised ed. London: Intermediate Technology Publications, 1976.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিMann, H. T., এবং D. Williamson. Water Treatment and Sanitation: A Handbook of Simple Methods for Rural Areas in Developing Countries. Revised ed. Intermediate Technology Publications, 1976.
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