Woolfe, Jennifer A.  <br/><br/>
Sweet potato :  an untapped food resource / 
Jennifer A. Woolfe. 
 - Cambridge :  Cambridge University press,  c1992. 
 - 643 p. :  ill. 
<br/><br/><label>ISBN: </label>0521402956 9780521402958 
<br/><br/><label>Dewey Class. No.: </label>641.3522