APA-Zitierstil (7. Ausg.)

Clarke, D., & Macfarlane, M. (2006). Focus on Business (New edition.). Cornelsen.

Chicago-Zitierstil (17. Ausg.)

Clarke, David, 与 Michael Macfarlane. Focus on Business. New edition. Berlin: Cornelsen, 2006.

MLA-Zitierstil (8. Ausg.)

Clarke, David, 与 Michael Macfarlane. Focus on Business. New edition. Cornelsen, 2006.

警告：这些引文格式不一定是100％准确.