TY  - GEN
AU  - Giller,Ken E.,Wilson,Kate J.
TI  - Nitrogen fixation in tropical cropping systems
SN  - 0851986714
PY  - 1991///
CY  - Wallingford
PB  - C.A.B. International
KW  - Nitrogen Fixation
KW  - Cropping Systems
ER  -