Cita APA (7th ed.)
Todd, D. K. (1980). Groundwater hydrology (2nd ed.). Wiley.
Cita Chicago (17th ed.)
Todd, David Keith. Groundwater Hydrology. 2nd ed. New York: Wiley, 1980.
Cita MLA (9th ed.)
Todd, David Keith. Groundwater Hydrology. 2nd ed. Wiley, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.