TY  - GEN
AU  - Bainer, Roy
AU  - Barger, E L
AU  - Kepner, R A
TI  - Principles of farm machinery
U1  - 631.3 KEP 
CY  - Newdelhi,  C B S publishers &distributers
KW  - farm machinery -principles / crop planting / farm machinery- research
ER  -