APA استشهاد

Todd David Keith. (1959). Groudwater hydrology (2nd ed.). John Wiley & sons.

استشهاد بنمط شيكاغو

Todd David Keith. Groudwater Hydrology. 2nd ed. New York: John Wiley & sons, 1959.

MLA استشهاد

Todd David Keith. Groudwater Hydrology. 2nd ed. John Wiley & sons, 1959.