TY  - BOOK
AU  - Liljedahl, John B.
TI  - Tractors and their power units
U1  - 631.372 
PY  - 1989///
CY  - New York
PB  - Avi
KW  - Maquinaria agrícola
KW  - Tractores
N1  - 39-86
ER  -