Cita APA (7a ed.)

Oxenden, C., & Seligson, P. (2002). English file 1: Student's books. Oxford University Press.

Cita Chicago Style (17a ed.)

Oxenden, Clive, y Paul Seligson. English File 1: Student's Books. Oxford: Oxford University Press, 2002.

Cita MLA (9a ed.)

Oxenden, Clive, y Paul Seligson. English File 1: Student's Books. Oxford University Press, 2002.