TY  - GEN
AU  - Johnson, Elmer J.
AU  - Hollenberg, Alvin H.
TI  - Servicing and maintaining farm tractors
U1  - 631.372 
PY  - 1950///
CY  - New York
PB  - McGraw-Hill
KW  - Agriculture and related technologies
KW  - Tractors
KW  - Power and power machinery
KW  - Tools, machinery, apparatus, equipments
ER  -