(1988). Biological nitrogen fixation: Recent developments. Oxford and IBH.
Chicago Style (17th ed.) ZitazioaBiological Nitrogen Fixation: Recent Developments. New Delhi: Oxford and IBH, 1988.
MLA (9th ed.) ZitazioaBiological Nitrogen Fixation: Recent Developments. Oxford and IBH, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.