APA aipamena

Harding, K., & Taylor, L. (2006). International express: Intermediate. New York: Oxford University Press.

Chicago Style aipamena

Harding, Keith., và Liz Taylor. International Express: Intermediate. New York: Oxford University Press, 2006.

MLA aipamena

Harding, Keith., và Liz Taylor. International Express: Intermediate. New York: Oxford University Press, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.