APA citiranje

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

Trích dẫn kiểu Chicago

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

MLA citiranje

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