International Institute of Tropical Agriculture, Ayanaba, A., & Dart, P. J. (1977). Biological nitrogen fixation in farming systems of the Tropics: Based on papers presented at a symposium held at the International Institute of Tropical Agriculture, Ibadan, Nigeria, in October 1975. Wiley.
Chicago Style (17th ed.) CitationInternational Institute of Tropical Agriculture, A. Ayanaba, and P. J. Dart. Biological Nitrogen Fixation in Farming Systems of the Tropics: Based on Papers Presented at a Symposium Held at the International Institute of Tropical Agriculture, Ibadan, Nigeria, in October 1975. Chichester ; New York: Wiley, 1977.
MLA (9th ed.) CitationInternational Institute of Tropical Agriculture, et al. Biological Nitrogen Fixation in Farming Systems of the Tropics: Based on Papers Presented at a Symposium Held at the International Institute of Tropical Agriculture, Ibadan, Nigeria, in October 1975. Wiley, 1977.