Awasthi Dharani Dhar Compendium of the macrolichens from India, Nepal & Sri Lanka .-978-81-211-0600 - Bishen Singh M Pal Singh, Dehra Dun - pp 1-580 ISBN: 978-81-211-0600 Dewey Class. No.: I27:11.2 P07/AWASTHI DHARANI/B26121