APA ציטוט

Knapp, B. J. (1979). Elements of geographical hydrology. George Allen and unwin.

Chicago Edition Citation

Knapp, B J. Elements of Geographical Hydrology. New Delhi: George Allen and unwin, 1979.

ציטוט MLA

Knapp, B J. Elements of Geographical Hydrology. George Allen and unwin, 1979.