Cita APA (7th ed.)
Viessman, W., & Lewis, G. L. (2003). Introduction to Hydrology (5th ed.). Pearson Education.
Cita Chicago (17th ed.)
Viessman, Warren, i Gary L. Lewis. Introduction to Hydrology. 5th ed. New Delhi: Pearson Education, 2003.
Cita MLA (9th ed.)
Viessman, Warren, i Gary L. Lewis. Introduction to Hydrology. 5th ed. Pearson Education, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.