TY  - BOOK
AU  - Bainer, Roy,
AU  - Kepner, R.A
AU  - Barger, E. L.
TI  -  Principles of farm machinery
U1  - 631.3 
PY  - 1955///
CY  - New York.
PB  - John Wiley
KW  - Agricultural machinery
N1  - Includes bibliographical references and index
ER  -