Cita APA (7a ed.)

Richards, J. C. (1996). Interchange: English for international communication: lab guide. 2.

Cita Chicago Style (17a ed.)

Richards, Jack C. Interchange: English for International Communication: Lab Guide. 2. Cambridge, 1996.

Cita MLA (9a ed.)

Richards, Jack C. Interchange: English for International Communication: Lab Guide. 2. 1996.