Wiser, C. O. (1959). Hydrology (2nd ed.). John wiley.
Chicago Style aipamenaWiser, C O. Hydrology. 2nd ed. London: John wiley, 1959.
MLA aipamenaWiser, C O. Hydrology. 2nd ed. John wiley, 1959.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.