एपीए उद्धरण

Bowler, B., & Bill Bowler; Sue Parminter. (2002). Happy Earth: Teacher's Book 1. Oxford,New York: Oxford University Press.

शिकागो स्टाइल उद्धरण

Bowler, Bill, और Bill Bowler; Sue Parminter. Happy Earth: Teacher's Book 1. Oxford,New York: Oxford University Press, 2002.

एमएलए उद्धरण

Bowler, Bill, और Bill Bowler; Sue Parminter. Happy Earth: Teacher's Book 1. Oxford,New York: Oxford University Press, 2002.