एपीए उद्धरण

Chawla, R. (2006). Sustainable development and tourism. Sumit enterpriser.

शिकागो स्टाइल उद्धरण

Chawla, Ramesh. Sustainable Development and Tourism. New Delhi: Sumit enterpriser, 2006.

एमएलए उद्धरण

Chawla, Ramesh. Sustainable Development and Tourism. Sumit enterpriser, 2006.