TY  - BOOK
AU  - WEIGLEY,GORDON
TI  - TROPICAL AGRICULTURE: THE DEVELOPMENT OF PRODUCTION / 
U1  - 634.6 
PY  - 1988///
CY  - [S.N] : 
PB  - ELBS ، 
KW  - TROPICAL CROPS
KW  - AGRICULTURE
KW  - AGRICULTURE - TROPICS
KW  - AGRICULTURAL ADMINISTRATION
KW  - FARM PRODUCTION QUDOTAS
ER  -