Cita APA (7th ed.)

Vince, M., & Emmerson, P. (2003). First Certificate: Language practice. Oxford University Press.

Cita Chicago (17th ed.)

Vince, Michael, i Paul Emmerson. First Certificate: Language Practice. Oxford: Oxford University Press, 2003.

Cita MLA (8th ed.)

Vince, Michael, i Paul Emmerson. First Certificate: Language Practice. Oxford University Press, 2003.