Cita APA (7a ed.)

Swan, M., & Walter, C. (1985). The Cambridge English course. 1 Student's book. Cambridge University Press.

Cita Chicago Style (17a ed.)

Swan, Michael, y Catherine Walter. The Cambridge English Course. 1 Student's Book. Cambridge: Cambridge University Press, 1985.

Cita MLA (9a ed.)

Swan, Michael, y Catherine Walter. The Cambridge English Course. 1 Student's Book. Cambridge University Press, 1985.