एपीए उद्धरण

Sethi, P. (2005). Tourism today and tomorrow.

शिकागो स्टाइल उद्धरण

Sethi, Praveen. Tourism Today and Tomorrow. NewDelhi, Anmol, 2005.

एमएलए उद्धरण

Sethi, Praveen. Tourism Today and Tomorrow. 2005.