Cita APA

Bowler, B., & Bill Bowler; Sue Parminter. (2007). Happy World American English: Teacher's Book. Oxford: Oxford University Press.

Citación estilo Chicago

Bowler, Bill, y Bill Bowler; Sue Parminter. Happy World American English: Teacher's Book. Oxford: Oxford University Press, 2007.

Cita MLA

Bowler, Bill, y Bill Bowler; Sue Parminter. Happy World American English: Teacher's Book. Oxford: Oxford University Press, 2007.

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