RASHIO, A <br/><br/>
An Introductionto Pteridophyta 

 - 2nd ed 
 - New Delhi :  vikas Publishing House  2000 
 - 426 P 
<br/><br/><label>ISBN: </label>81-259-0709-2 
<br/><br/><label>Dewey Class. No.: </label>587