TY  - BOOK
AU  - Claassen, S. L.
AU  - IITA
TI  - Mechanized minimum and no-till crop production for research farms
AV  - S604 .C6 1992 
PY  - 1992///
CY  - Ibadan
PB  - IITA
KW  - Crops -
KW  - Production -
KW  - Research
ER  -