Boyd, John. <br/><br/>
Tools for agriculture :  a buyers guide to low cost  agricultural implements / 
John Boyd. 
 - London  :  Intermediate Technology Publications ,  1976 
 - 173 p. :  ill.;  30 cm. 
<br/><br/><label>ISBN: </label>0903031221 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural Implements
<br/><br/><label>Dewey Class. No.: </label>631.3 BOY