TY  - BOOK
AU  - Fresco,L.O.
ED  - Landbouwhogeschool Wageningen.
TI  - Cassava in shifting cultivation.A systems approach to agr.technol.devt.in Afr
PY  - 1986///
CY  - Wageningen
PB  - s.n.
N1  - Proefschrift
ER  -