Degras,L. <br/><br/>
Sweet Potato 

 - London  Macmillan  1998 
<br/><br/><label>ISBN: </label>0-333-79150-9 
<br/><br/><label>LC Class. No.: </label>641.3522/DEG  / 1 
<br/><br/><label>Dewey Class. No.: </label>641.3522/DEG  / 1