APA način citiranja

Bowler, B., & Bill Bowler; Sue Parminter. (2003). Happy Earth: Class book. Oxford,New York: Oxford University Press.

Čikaški stil citiranja

Bowler, Bill, i Bill Bowler; Sue Parminter. Happy Earth: Class Book. Oxford,New York: Oxford University Press, 2003.

MLA način citiranja

Bowler, Bill, i Bill Bowler; Sue Parminter. Happy Earth: Class Book. Oxford,New York: Oxford University Press, 2003.