Bajpai Rajesh & Upreti Dilip K <br/><br/>
Lichens on Indian Monuments Biodeterioration and Biomonitoring .-978-81-211-0856-0 

 -  Bishen Singh Mahendra Pal Singh, Dehra Dun  2014 
<br/><br/><label>ISBN: </label>978-81-211-0856-0 
<br/><br/><label>Dewey Class. No.: </label>I27.2   P14/B27998