OPEN Universisty of Sri Lanka <br/><br/>
Insects and their control: PSU 3104- block 2 

 - Nugegoda  The Open University of Sri Lanka  0 
 - 62 p. 
<br/><br/><label>ISBN: </label>139338 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insects
<br/><br/><label>Dewey Class. No.: </label>595.7  / OPE