APA Citatie

Viessman, W., & Lewis , G. (2009). Introduction to hydrology (5th ed.). PHI.

Chicago Style citaat

Viessman, Warren, en Gary Lewis. Introduction to Hydrology. 5th ed. New Delhi: PHI, 2009.

MLA citatie

Viessman, Warren, en Gary Lewis. Introduction to Hydrology. 5th ed. PHI, 2009.