Cita APA (7a ed.)

Vince, M., & Sunderland, P. (2003). Advanced language practice: With key. Macmillan.

Cita Chicago Style (17a ed.)

Vince, Michael, y Peter Sunderland. Advanced Language Practice: With Key. Oxford: Macmillan, 2003.

Cita MLA (9a ed.)

Vince, Michael, y Peter Sunderland. Advanced Language Practice: With Key. Macmillan, 2003.