Singh, Sarnam <br/><br/>
Ferns and fern-allies of Arunachal Pradesh/ 
Sarnam Singh 
 - 1st ed. 
 - Dehra Dun:  Singh Sarnam,  2005. 
 - 881 p. 
<br/><br/><label>ISBN: </label>8121104459 
<br/><br/><label>Dewey Class. No.: </label>587.31095416  / SIN/F