एपीए उद्धरण

Sharma Sashi Pushpa. (2006). Tourism and environment/1e. Kanishka.

शिकागो स्टाइल उद्धरण

Sharma Sashi Pushpa. Tourism and Environment/1e. New Delhi: Kanishka, 2006.

एमएलए उद्धरण

Sharma Sashi Pushpa. Tourism and Environment/1e. Kanishka, 2006.