Yen, Douglas <br/><br/>
Natural and human selection in the Pacific sweet potato 

 -  ill., graph. 
<br/><br/>bibliogr. p. 410-412 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botanique<br/>Flore<br/>Patate douce<br/>Ipomoea batatas<br/>Culture<br/>Distribution<br/>Morphologie<br/>Variation