APA (7th ed.) Citation

Ryan, W. J. (1946). Water treatment and purification. McGraw-Hill book company inc.

Chicago Style (17th ed.) Citation

Ryan, William John. Water Treatment and Purification. New York: McGraw-Hill book company inc, 1946.

MLA (9th ed.) Citation

Ryan, William John. Water Treatment and Purification. McGraw-Hill book company inc, 1946.