APA (7th ed.) Zitazioa

(1988). Biological nitrogen fixation: Recent developments. Oxford and IBH.

Chicago Style (17th ed.) Zitazioa

Biological Nitrogen Fixation: Recent Developments. New Delhi: Oxford and IBH, 1988.

MLA (9th ed.) Zitazioa

Biological Nitrogen Fixation: Recent Developments. Oxford and IBH, 1988.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.