TY  - BOOK
AU  - Jones,Fred R., x
AU  - x
TI  - Farm gas engines and tractors: x 
SN  - x  
U1  - 631.6/JOF 
PY  - 1938///
CY  - N. Y. 
PB  - McGraw - Hill
KW  - Agriculture Engineering
KW  - Agriculture
ER  -