TY  - SER
AU  - 
TI  - Agriculture Engineer Vol. 42(1-4), Vol. 43 (1-4), Vol. 44 (1-4)
U1  - 631 
PY  - 1987///-89
CY  - [s.l]
PB  - Institution of Agricultural Engineers
KW  - Agricultural Engineering
KW  - Techniques, equipment & materials
ER  -