Sharma,O P <br/><br/>
Pteridophyta 

 - 2nd 
 - Delhi  Macmillan  2006 
 - 374 
<br/><br/><label>ISBN: </label> 295 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany
<br/><br/><label>Dewey Class. No.: </label>587  / SHA