Richards, J., & Long, M. (1985). Breakthrough: A Course in English Communication Practice. Oxford: Oxford University Press.
シカゴスタイル引用形Richards, J.c., , M.n Long. Breakthrough: A Course in English Communication Practice. Oxford: Oxford University Press, 1985.
MLA引用形式Richards, J.c., , M.n Long. Breakthrough: A Course in English Communication Practice. Oxford: Oxford University Press, 1985.
警告: この引用は必ずしも正確ではありません.