Swan, M., & Walter, C. (1987). The Cambridge English course. New York: Cambridge University Press.
Trích dẫn kiểu ChicagoSwan, Michael, và Catherine Walter. The Cambridge English Course. New York: Cambridge University Press, 1987.
MLA引文Swan, Michael, và Catherine Walter. The Cambridge English Course. New York: Cambridge University Press, 1987.
警告:這些引文格式不一定是100%准確.