Negi, S.S Manual of Indian forestry. Vol.2 silviculture of Indian trees, forest policy, forest law, wildlife act, forest management, working plans and yield tables - 2nd. ed. - Dehra Dun Bishen Singh Mahendra Pal Singh 1996 - 512 p. ISBN: 8121101328 Dewey Class. No.: 634.9 / NEG