APA (7th ed.) Zitazioa
Basak N.N. (1999). Irrigation engineeing. McGraw Hill.
Chicago Style (17th ed.) Zitazioa
Basak N.N. Irrigation Engineeing. New Delhi: McGraw Hill, 1999.
MLA (9th ed.) Zitazioa
Basak N.N. Irrigation Engineeing. McGraw Hill, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.