APA
Mann H. T. &. W. D., . (1986). Water sanitation and treatment. Intermediate Technology, U.K: .
Chicago
Mann H T & Williamson D, . 1986. Water sanitation and treatment. Intermediate Technology, U.K: .
Harvard
Mann H. T. &. W. D., . (1986). Water sanitation and treatment. Intermediate Technology, U.K: .
MLA
Mann H T & Williamson D, . Water sanitation and treatment. Intermediate Technology, U.K: . 1986.