Barker, A. (2008). Improve your communication skills (2nd ed.). Kogan Page.
シカゴスタイル引用形Barker, Alan. Improve Your Communication Skills. 2nd ed. New Delhi: Kogan Page, 2008.
MLA引用形式Barker, Alan. Improve Your Communication Skills. 2nd ed. Kogan Page, 2008.
警告: この引用は必ずしも正確ではありません.