Swan, M., & Walter, C. (1991). The Cambridge English Course: T. I. Practice Book. New York: Cambridge University Press.
シカゴスタイル引用形Swan, Michael, , Catherine Walter. The Cambridge English Course: T. I. Practice Book. New York: Cambridge University Press, 1991.
MLA引用形式Swan, Michael, , Catherine Walter. The Cambridge English Course: T. I. Practice Book. New York: Cambridge University Press, 1991.
警告: この引用は必ずしも正確ではありません.