TY  - BOOK
AU  - Beets,Willem.C
TI  - Raising and sustaining productivity of smallholder farming systems in the tropics: A handbook of sustainable agricultural development
SN  - 9748567613
AV  - HD1417 .B43 1990
PY  - 1990///
CY  - Holland
PB  - AgBe Publishing
N1  - includes index
ER  -