Christianson, L L. <br/><br/>
Design in agricultural engineering   
by L L Christianson and Roger P Rohrbach 
 - Michigan  ASAE  1986 
 - ix, 310p. 
<br/><br/><label>ISBN: </label>0916150801 
<br/><br/><label>Dewey Class. No.: </label>631  / N862