Water quality and treatment :
a handbook of community water supplies /
American Water Works Association ; Fredrick W. Pontius, technical editor.

APA Citation

American Water Works Association. (1990). Water quality and treatment: a handbook of community water supplies. 4th ed. New York: McGraw-Hill.

MLA Citation

American Water Works Association. Water Quality And Treatment: a Handbook of Community Water Supplies. 4th ed. New York: McGraw-Hill, 1990.

Warning: These citations may not always be complete (especially for serials).