CHRISTIANSON, L L. <br/><br/>
Design in Agricultural engineering. 

 - St. Joseph.  American Society of Agricultu  ral Enginee1986 
 - ix, 310p. 
<br/><br/><label>ISBN: </label>0 916150 80 1 
<br/><br/><label>Dewey Class. No.: </label>620.1