TY  - BOOK
AU  - United Nations F. A..O.
ED  - United Nations F. A..O.
TI  - International directory of agricultural engineerin
U1  - J:(D).1e4n,N7, L3/UN 
PY  - 1973///
CY  - Rome
PB  - Food and Agriculture Organization       
KW  - Agriculture
ER  -