Comfort, J. (1996). Effective telephoning. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoComfort, Jeremy. Effective Telephoning. Oxford: Oxford University Press, 1996.
MLA引文Comfort, Jeremy. Effective Telephoning. Oxford: Oxford University Press, 1996.
警告：這些引文格式不一定是100％准確.