APA (7th ed.) Zitazioa
Byrne, K. (2001). Environmental science (2nd ed.). Nelson Thorne.
Chicago Style (17th ed.) Zitazioa
Byrne, Kevin. Environmental Science. 2nd ed. UK: Nelson Thorne, 2001.
MLA (9th ed.) Zitazioa
Byrne, Kevin. Environmental Science. 2nd ed. Nelson Thorne, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.