APA aipamena

Harding, K., & Wallwork, A. (2007). International express: Upper-intermediate .Student's Book. Oxford: Oxford Univ. Press.

Chicago Style aipamena

Harding, Keith, và Adrian Wallwork. International Express: Upper-intermediate .Student's Book. Oxford: Oxford Univ. Press, 2007.

MLA aipamena

Harding, Keith, và Adrian Wallwork. International Express: Upper-intermediate .Student's Book. Oxford: Oxford Univ. Press, 2007.