APA引文

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

Trích dẫn kiểu Chicago

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

MLA引文

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

警告：這些引文格式不一定是100％准確.