TY  - BOOK
AU  - Mulongoy,K.
AU  - Gueye,Mamadou
AU  - Spencer,Dunstan S.C.
TI  - Biological nitrogen fixation and sustainability of tropical agriculture: proceedings of the Fourth International Conference of the African Association for Biological Nitrogen Fixation (AABNF), held at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, 24-28 September 1990 
SN  - 0471935603
AV  - S587.5.N5A36 1990 
U1  - 631.8/47/0966 
PY  - 1992///
CY  - Chichester, West Sussex, U.K., New York
PB  - J. Wiley
KW  - Nitrogen in agriculture
KW  - Congresses
KW  - Nitrogen
KW  - Fixation
KW  - Nitrogen-fixing plants
KW  - Cropping systems
KW  - Sustainable agriculture
UR  - http://www.loc.gov/catdir/description/wiley036/92243318.html
UR  - http://www.loc.gov/catdir/toc/onix07/92243318.html
ER  -