TY  - BOOK
AU  - Giller, Ken. E.  .
TI  - Nitrogen fixation in tropical cropping systems / 
SN  - 0-85199-417-2
U1  - I:424 
PY  - 2001///
CY  - UK : 
PB  - CABI Publishing , 
KW  - Nitrogen-Fixing plants-Tropics
ER  -