Parihar, N S <br/><br/>
Introduction to embryophyta, Vol.2: Pteridophyta / 
Parihar, N S 
 - 5 ed. 
 -  Central Book Depot, Allahabad,  1966 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pteridophyta; Botany
<br/><br/><label>Dewey Class. No.: </label>587 PAR-I5.2