APA aipamena

Bell, C., & McNab, R. (2006). Expo 4 higher. Heinemann.

Chicago Style aipamena

Bell, C., and R. McNab. Expo 4 Higher. Oxford: Heinemann, 2006.

MLA aipamena

Bell, C., and R. McNab. Expo 4 Higher. Heinemann, 2006.