Παραπομπή σε μορφή APA (7η εκδ.)

Negi, S. S. (1983). Contributions to Himalayan ecology. Bishen Singh Mahendra Pal Singh and Indian Journal of Forestry.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Negi, Sharad Singh. Contributions to Himalayan Ecology. Dehra Dun, India: Bishen Singh Mahendra Pal Singh and Indian Journal of Forestry, 1983.

Παραπομπή σε μορφή MLA (8th εκδ.)

Negi, Sharad Singh. Contributions to Himalayan Ecology. Bishen Singh Mahendra Pal Singh and Indian Journal of Forestry, 1983.