Comfort, J. (1984). Speaking effectively: Developing speaking skills for business English. Cambridge University Press.
Chicagoスタイル(17版)引用形式Comfort, Jeremy. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge: Cambridge University Press, 1984.
MLA(8版)引用形式Comfort, Jeremy. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge University Press, 1984.
警告: この引用は必ずしも正確ではありません.