O'sullivan, D., Swan, M., & Walter, C. (1992). C: The New Cambridge English Course Intermediate. Cambridge: Cambridge University.
シカゴスタイル引用形O'sullivan, Desmond, Michael Swan, , Catherine Walter. C: The New Cambridge English Course Intermediate. Cambridge: Cambridge University, 1992.
MLA引用形式O'sullivan, Desmond, Michael Swan, , Catherine Walter. C: The New Cambridge English Course Intermediate. Cambridge: Cambridge University, 1992.
警告: この引用は必ずしも正確ではありません.