Mark Irvine. (1999). Commercially speaking (Student's book). Oxford: Oxford Univ. Press.
シカゴスタイル引用形Mark Irvine. Commercially Speaking (Student's Book). Oxford: Oxford Univ. Press, 1999.
MLA引用形式Mark Irvine. Commercially Speaking (Student's Book). Oxford: Oxford Univ. Press, 1999.
警告: この引用は必ずしも正確ではありません.