Degras, Lucien. <br/><br/>
The yam   a tropical root crop  
Lucien Degras  
 - Oxford  Macmillan   1993 
 - xv, 408 p. : ill,; 
<br/><br/><label>ISBN: </label>0333574567 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Yams.<br/>Yam -- Tropical root crops
<br/><br/><label>LC Class. No.: </label>SB211.Y3  / D4 1993