APA Edition Citation

Ayanaba, A. (1977). Biological nitrogen fixation in farming systems of the tropics. John Wiley and Sons.

Chicago Edition Citation

Ayanaba, A. Biological Nitrogen Fixation in Farming Systems of the Tropics. New York: John Wiley and Sons, 1977.

MLA Edition Citation

Ayanaba, A. Biological Nitrogen Fixation in Farming Systems of the Tropics. John Wiley and Sons, 1977.

Warning: These citations may not always be 100% accurate.