TY  - BOOK
AU  - Johnson, Elmer J.
AU  - Hollenberg, Alvin H.
TI  - Servicing and maintaining farm tractors
U1  - 631.3 J 66 S 
PY  - 1950///
CY  - New York
PB  - Mcgraw-hill book
KW  - Farm Tractors
KW  - Servicing & Maintaining
ER  -