Cita APA (7th ed.)

Richards, J. C. (1991). Interchange 2: Student's Book. Cambridge University Press.

Cita Chicago (17th ed.)

Richards, Jack C. Interchange 2: Student's Book. Cambridge, Reino Unido: Cambridge University Press, 1991.

Cita MLA (9th ed.)

Richards, Jack C. Interchange 2: Student's Book. Cambridge University Press, 1991.