TY  - BOOK
AU  - White, Jeffrey W.
AU  - Grace, Peter R.
TI  - Directions in modeling wheat and maize for developing countries: proceedings
T2  - Geographic information systems. Series 01-02
SN  - 9706480811
PY  - 2001///
CY  - MÃ©xico, D.F.
PB  - Centro Internacional de Mejoramiento de Maiz y Trigo
KW  - MaÃ­z
KW  - PaÃ­ses subdesarrollados
KW  - Trigo
ER  -