O'sullivan, D., Swan, M., & Walter, C. (1992). C: The New Cambridge English Course Intermediate. Cambridge: Cambridge University.
Trích dẫn kiểu ChicagoO'sullivan, Desmon, Michael Swan, và Catherine Walter. C: The New Cambridge English Course Intermediate. Cambridge: Cambridge University, 1992.
MLA引文O'sullivan, Desmon, Michael Swan, và Catherine Walter. C: The New Cambridge English Course Intermediate. Cambridge: Cambridge University, 1992.
警告：這些引文格式不一定是100％准確.