Algal Flora of Dehradun District, Uttaranchal/ 
R.K. Gupta 
 - 1st ed. 
 - Kolkata ::  Botanical Survey of India,  2005. 
 - iii, 298 p., [4] p. of plates : 
<br/><br/><label>ISBN: </label>8181770137 
<br/><br/><label>Dewey Class. No.: </label>579.3095451  / GUP/A