APA (7th ed.) Citation

Ryan, W. J. (1946). Water treatment and purification (2d ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Ryan, William John. Water Treatment and Purification. 2d ed. New York, London: McGraw-Hill, 1946.

MLA (9th ed.) Citation

Ryan, William John. Water Treatment and Purification. 2d ed. McGraw-Hill, 1946.