Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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