Udawaththa, Amal <br/><br/>
Manawa parinamaya = Human evolution / 
Amal Udawaththa 
 - Dankotuwa  Vasana  2004 
 - 143 p. 
<br/><br/><label>ISBN: </label>9551068793 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animal behavior
<br/><br/><label>Dewey Class. No.: </label>599  / UDA