APA (7th ed.) Zitazioa

Kettering International Symposium on Nitrogen Fixation Madison, Wis., & Orme-Johnson, W. H. (1980). Nitrogen fixation. University Park Press.

Chicago Style (17th ed.) Zitazioa

Kettering International Symposium on Nitrogen Fixation Madison, Wis., eta William H. Orme-Johnson. Nitrogen Fixation. Baltimore: University Park Press, 1980.

MLA (9th ed.) Zitazioa

Kettering International Symposium on Nitrogen Fixation Madison, Wis., eta William H. Orme-Johnson. Nitrogen Fixation. University Park Press, 1980.