Cita APA

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

Citación estilo Chicago

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

Cita MLA

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