APA (7th ed.) Zitazioa
Managing Planet Earth: Readings from Scientific American Magazine. W.H. Freeman and Company.
Chicago Style (17th ed.) Zitazioa
Managing Planet Earth: Readings from Scientific American Magazine. Nueva York, EUA: W.H. Freeman and Company.
MLA (9th ed.) Zitazioa
Managing Planet Earth: Readings from Scientific American Magazine. W.H. Freeman and Company.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.