Maxwell, Robert M C, ed. series Shippen, J M Turner, J C <br/><br/>
Basic farm machinery 

 - 2nd. ed. 
 - Toronto  Pergamon press  1973 
 - ix,383p.; 22cm. 
 - Pergamon international library of socience, technology, engineering and social studies .
<br/><br/><label>ISBN: </label>80176526 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Agriculture machinery<br/>Machinery<br/>Tractor