APA aipamena

Unesco. (1972). Curricula and syllabi in hydrology. Unesco paris.

Chicago Style aipamena

Unesco. Curricula and Syllabi in Hydrology. UNA: Unesco paris, 1972.

MLA aipamena

Unesco. Curricula and Syllabi in Hydrology. Unesco paris, 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.