Smith Harris, Pearson. <br/><br/>
Farm machinery and equipment 

 - 2 ed. 
 - New York :  McGraw-Hill,  1937 
 - 460 p.  : ilus. 
<br/><br/><label>LCCN: </label>58067 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Maquinaria agrícola.
<br/><br/><label>Dewey Class. No.: </label>631.3  / S55