APA aipamena

SS Negi. (1990). Himalayan forests & forestry. Indus publishing company.

Chicago Style aipamena

SS Negi. Himalayan Forests & Forestry. New Delhi: Indus publishing company, 1990.

MLA aipamena

SS Negi. Himalayan Forests & Forestry. Indus publishing company, 1990.