Jayasekara, Shamika. com <br/><br/>
National bibliography on plant protection 

 - Colombo  SLCARP  2001 
<br/><br/><label>ISBN: </label>NULL 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>PLANT PROTECTION
<br/><br/><label>Dewey Class. No.: </label>632  / NAT