RASHID, A. <br/><br/>
An introduction to pteridophyta : diversity and differentiation. 

 - Newdelhi.  Vikas Pub. House Pvt. Ltd.  1979 
 - xi, 283 p. 
<br/><br/><label>ISBN: </label>706909305 
<br/><br/><label>Dewey Class. No.: </label>581.8