TY  - BOOK
AU  - 
TI  - Raising and Sustaining Productivity of Smallholder Farming Systems in the Tropics : A Handbook of Sustainable Agricultural Development
SN  - 974-85676-1-3
AV  - HD1417 B21
PY  - 1990///
CY  - Alkmaar, Holland
PB  - AgBé Publishing
KW  -  
ER  -