Negi, S. (1993). Biodiversity and its conservation in India. Indus publishing.
Chicago Style aipamenaNegi, S.S. Biodiversity and Its Conservation in India. New Delhi: Indus publishing, 1993.
MLA aipamenaNegi, S.S. Biodiversity and Its Conservation in India. Indus publishing, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.