Gaya APA

Crawford, H, B, (. (1971). Water Quality and Treatment. A Handbook of Public Water Supplies (1971). : New York : McGraw-Hill Book Co.,.

Gaya MLA

Crawford, Harold, B, (Editor). "Water Quality and Treatment. A Handbook of Public Water Supplies". 1971 : New York : McGraw-Hill Book Co.,, 1971. Text.