एपीए उद्धरण

Yates, C. S. (1992). May I Help You?: (English in Tourism). New York: Prentice-Hall.

शिकागो स्टाइल उद्धरण

Yates, Christopher St.j. May I Help You?: (English in Tourism). New York: Prentice-Hall, 1992.

एमएलए उद्धरण

Yates, Christopher St.j. May I Help You?: (English in Tourism). New York: Prentice-Hall, 1992.