Dokumentuaren aipamena

APA (7th ed.) Zitazioa
Gillespie, A. (2007). Protected areas and international environmental law. Martinus Nijhoff Publishers.
Chicago Style (17th ed.) Zitazioa
Gillespie, Alexander. Protected Areas and International Environmental Law. Leiden ; Boston: Martinus Nijhoff Publishers, 2007.
MLA (9th ed.) Zitazioa
Gillespie, Alexander. Protected Areas and International Environmental Law. Martinus Nijhoff Publishers, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.