TY  - BOOK
AU  - Ayanaba,A.
AU  - Dart,P.J.
ED  - International Institute of Tropical Agriculture. 
TI  - Biological nitrogen fixation in farming systems of the Tropics
SN  - 0471994995
U1  - 589.95041 
PY  - 1977///
CY  - Chichester ; New York
PB  - John Wiley, 
KW  - AGRICULTURA
KW  - CONGRESOS, CONFERENCIAS, ETC
KW  - TROPICOS
KW  - FIJACION DEL NITROGENO
KW  - SISTEMA DE CULTIVO
N1  - Based on papers presented at a symposium held at the International Institute of Tropical Agriculture, Ibadan, Nigeria, in October 1975; Incluye referencias bibliográficas e índice
UR  - https://www.cicy.mx/sitios/sib/doctoelectronico/434.pdf
ER  -