VASISTA, P.C <br/><br/>
Pteridophyta ( Vascular Cryptogams) 

 - 5th ed 
 - New Delhi :  S.Chand & company  2002 
 - ix, 509 P 
<br/><br/><label>ISBN: </label>81-219-0828-0 
<br/><br/><label>Dewey Class. No.: </label>587