Παραπομπή APA

Todd, D. K. (1959). Ground water hydrology (2nd ed.). John Wiley.

Παραπομπή Chicago Style

Todd, David Keith. Ground Water Hydrology. 2nd ed. New York: John Wiley, 1959.

Παραπομπή MLA

Todd, David Keith. Ground Water Hydrology. 2nd ed. John Wiley, 1959.