Bingham, Caroline <br/><br/>
Tractor :  Machines at Work. 

 - New York, NY :  DK,  2004. 
 - Machines at Work .
<br/><br/><label>ISBN: </label>0-7566-0217-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Farm tractors--Juv. Lit.<br/>Tractors--Juv. Lit.<br/>Farm equipment--Juv. Lit.