Parihar, N.S. <br/><br/>
The Biology and morphology of pteridophytes / 
N.S. Parihar. 
 - 2nd ed. 
 - Allahabad:  Central Book Distributors,  1971. 
 - 775p., ill.; 21cm. 
<br/><br/><label>Dewey Class. No.: </label>587.04 P15B