TY  - BOOK
AU  - Russell,H.E.
ED  - United Nations Environment Programme
TI  - Agricultural mechanization
SN  - 92-807-1116-4
PY  - 1986///
CY  - Nairobi
PB  - UNEP
KW  - Agriculture
KW  - plant breeding and getetic ingineering
KW  - irrigation
ER  -