Swan, M. (1987). The Cambridge English course 3: Test book. Cambridge: Cambridge University Press.
Trích dẫn kiểu ChicagoSwan, Michael. The Cambridge English Course 3: Test Book. Cambridge: Cambridge University Press, 1987.
MLA引文Swan, Michael. The Cambridge English Course 3: Test Book. Cambridge: Cambridge University Press, 1987.
警告：這些引文格式不一定是100％准確.