Abaywickrama, B.A. <br/><br/>
Unesco: Man and the Biosphere National Commitee for Sri Lanka: A Check List of the Pteridophytes of Sri Lanka- Publication No. 3 

 - Sri Lanka,  National Science Council,  1978, 
 - 15p.  28cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>A Check List of the Pteridophytes of Sri Lanka<br/>Man and the Biosphere National Committee