Cita APA (7a ed.)

Oxenden, C., Foley, M., & Seligson, P. (2002). English file 1: Workbook. Oxford University Press.

Cita Chicago Style (17a ed.)

Oxenden, Clive, Mark Foley, y Paul Seligson. English File 1: Workbook. Oxford: Oxford University Press, 2002.

Cita MLA (9a ed.)

Oxenden, Clive, et al. English File 1: Workbook. Oxford University Press, 2002.