एपीए उद्धरण

Chawla, R. (2006). Ecology and tourism development. Sumit enterprises.

शिकागो स्टाइल उद्धरण

Chawla, Ramesh. Ecology and Tourism Development. New Delhi: Sumit enterprises, 2006.

एमएलए उद्धरण

Chawla, Ramesh. Ecology and Tourism Development. Sumit enterprises, 2006.