Ministry of Agriculture standards for grades of sweet yams 
prepared by Marketing & Credit Division, Ministry of Agriculture 
 - Kingston  JIS Press  58A Half Way Tree Rd, Kgn. 10  1986 
 - 4 pages  21 cm 
<br/><br/> Cover title 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Yams--Grading--Jamaica