APA (7th ed.) Zitazioa
(2012). Food and Energy Security. Wiley.
Chicago Style (17th ed.) Zitazioa
Food and Energy Security. Wiley, 2012.
MLA (9th ed.) Zitazioa
Food and Energy Security. Wiley, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.