एपीए उद्धरण

Youell, R. (1998). Tourism: An introduction. Harlow, Essex: Addison Wesley Longman.

शिकागो स्टाइल उद्धरण

Youell, Ray. Tourism: An Introduction. Harlow, Essex: Addison Wesley Longman, 1998.

एमएलए उद्धरण

Youell, Ray. Tourism: An Introduction. Harlow, Essex: Addison Wesley Longman, 1998.