Rainguards  Rubber research institute of Sri Lanka advisory circular No: 1994/06 

 - Agalawatta  Plant Science Department 
 - 10 p.  Illustration 
<br/><br/><label>Subjects--Topical Terms: </label><br/>RUBBER<br/>NAZIS
<br/><br/><label>Dewey Class. No.: </label>B0421  / LDC