Ministry of Agriculture standard for grades of Negro yam 

 - [Kingston  (58A Half Way Tree Rd, Kgn. 10)]  JIS Press  1985 
 - [4]p  22cm 
<br/><br/> JM86-49  Cover title 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Yams - Jamaica - Grading
<br/><br/><label>Dewey Class. No.: </label> / No price Pam 635.2367  / Ja Jam