TY  - GEN
AU  - WEBSTER, C. C.
AU  - WILSON,P.N.
TI  - Agriculture in the tropics
SN  - 0-582-40735-4
CY  - Harlow
KW  - agriculture
KW  - conservation de l'eau
KW  - drainage
KW  - culture associée
KW  - irrigation
KW  - afrique
KW  - zone tropicale
ER  -