TY  - GEN
AU  - BAINER, ROY
AU  - KEPNER, R A
TI  - PRINCIPLES OF FARM MACHINERY
U1  - 631.3 KEP/PR 
CY  - NEW DELHI, CBS PUBLISHERS
KW  - DISK IMPLEMENTS
KW  - MOLDBOARD PLOWS
KW  - RESEARCH AND DEVELOPMENT
ER  -