APA (7th ed.) Zitazioa
ebrary, Inc, & Sykes, D. J. (2010). Water policy over 35 years. Nova Science Publishers.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Dillon J. Sykes. Water Policy over 35 Years. New York: Nova Science Publishers, 2010.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Dillon J. Sykes. Water Policy over 35 Years. Nova Science Publishers, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.