APA Alıntı

Bowler, B., & Bill Bowler; Sue Parminter. (2008). Happy Earth American english: Activity Book. Oxford: Oxford University Press.

Chicago Stili Alıntı

Bowler, Bill, ve Bill Bowler; Sue Parminter. Happy Earth American English: Activity Book. Oxford: Oxford University Press, 2008.

MLA Alıntı

Bowler, Bill, ve Bill Bowler; Sue Parminter. Happy Earth American English: Activity Book. Oxford: Oxford University Press, 2008.

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