Hutchinson, T. (1996). American hotline: Progress-workbook. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoHutchinson, Tom. American Hotline: Progress-workbook. Oxford: Oxford University Press, 1996.
MLA引文Hutchinson, Tom. American Hotline: Progress-workbook. Oxford: Oxford University Press, 1996.
警告：這些引文格式不一定是100％准確.