APA Edition Citation

Knapp, J. W., & Viessman, W. (1977). Introduction to hydrology (2.). Harper and Raw Publishers.

Chicago Edition Citation

Knapp, John W., and W. Viessman. Introduction to Hydrology. 2. New York: Harper and Raw Publishers, 1977.

MLA Edition Citation

Knapp, John W., and W. Viessman. Introduction to Hydrology. 2. Harper and Raw Publishers, 1977.