Agricultural Mechanics Fundamentals and Applications/ 
Herren, Ray V. 
 - Seventh Edition 
 - Australia:  Cengage Learning,  2015. 
 - x, 849p.: 
<br/><br/><label>ISBN: </label>9781285058955 
<br/><br/><label>LC Class. No.: </label>2013943110 
<br/><br/><label>Dewey Class. No.: </label>M 631.3 H564 2015