एपीए उद्धरण

Tejvir Singh. (1980). Studies in Himalayan ecology. English book store.

शिकागो स्टाइल उद्धरण

Tejvir Singh. Studies in Himalayan Ecology. New Delhi: English book store, 1980.

एमएलए उद्धरण

Tejvir Singh. Studies in Himalayan Ecology. English book store, 1980.