Irvine, M., & Cadman, M. (1999). Commercially speaking: Student's book. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoIrvine, Mark, và Marion Cadman. Commercially Speaking: Student's Book. Oxford: Oxford University Press, 1999.
MLA引文Irvine, Mark, và Marion Cadman. Commercially Speaking: Student's Book. Oxford: Oxford University Press, 1999.
警告：这些引文格式不一定是100％准确.