Cita APA

Wallwork, A., & Byrne, T. (2001). International express: Upper-Intermediate. Student's Book. Oxford: Oxford Univ. Press.

Chicago Style Citation

Wallwork, Adrian, i Tracy Byrne. International Express: Upper-Intermediate. Student's Book. Oxford: Oxford Univ. Press, 2001.

Cita MLA

Wallwork, Adrian, i Tracy Byrne. International Express: Upper-Intermediate. Student's Book. Oxford: Oxford Univ. Press, 2001.

Atenció: Aquestes cites poden no estar 100% correctes.