TY  - BOOK
AU  - McCcolly,Howard Franklin
AU  - Martin,James William
TI  - Introduction to agricultural engineering / 
U1  - 631.3 MACC 
PY  - 1955///
CY  - Ne York : 
PB  - McGraw-Hill, 
KW  - agricultural engineering
N1  -  Includes bibliographical references and index
ER  -