Jones, Fred R. <br/><br/>
Farm gas engines and tractors 

 - 2nd ed. 
 - New York  McGraw-Hill  1938 
 - xii,486p.  23cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tools, machinery, apparatus, equipment<br/>Agriculture and related technologies
<br/><br/><label>Dewey Class. No.: </label>631.3  / JON