Surathissa, D.M. <br/><br/>
ජෛව විවිධත්වය 
= jayiwa wiwidathwaya 


 - Nugegoda:  Sarasavi book shop,  2000. 
 - 100p.;  30cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology
<br/><br/><label>Dewey Class. No.: </label>578  / SUR