VASISHTA, P.C. <br/><br/>
BOTANY FOR DEGREE STUDENTS: PTERIDOPHYTA 

 - New Delhi  S. Chand and Sons, New Delhi   1988 
<br/><br/><label>ISBN: </label>81 219 0003 4 
<br/><br/><label>Dewey Class. No.: </label>587  / VAS/B