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

 - 2nd /   2006. 
 - Delhi:  Macmillan India Ltd.  2006. 
 - 374p:  22cm. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Botany, Pteridophyta. 
<br/><br/><label>Dewey Class. No.: </label>587