Wholey, D.W. <br/><br/>
A  yam staking system for Trinidad 

 - London  Grampian Press  1971 
 - 123-126p.  29 cm 
 - Title .
<br/><br/> Extract from World Crops, May/June, 1971 
<br/><br/><label>Dewey Class. No.: </label>Pam 635.23  / WI Who