Negi SS. (1996). Manual of Indian forestry (Set V.1 to V.5)- Vol.2 (1.). Bishen Singh Mahendra Pal Singh.
Chicago Style aipamenaNegi SS. Manual of Indian Forestry (Set V.1 to V.5)- Vol.2. 1. Dehra Dun: Bishen Singh Mahendra Pal Singh, 1996.
MLA aipamenaNegi SS. Manual of Indian Forestry (Set V.1 to V.5)- Vol.2. 1. Bishen Singh Mahendra Pal Singh, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.