Cita APA (7a ed.)

Harris, J. G., & Hube, r. (1975). On speaking terms: Conversational english for advanced students. Collier Macmillan International.

Cita Chicago Style (17a ed.)

Harris, Jimmy G., y rRon Hube. On Speaking Terms: Conversational English for Advanced Students. New York: Collier Macmillan International, 1975.

Cita MLA (8a ed.)

Harris, Jimmy G., y rRon Hube. On Speaking Terms: Conversational English for Advanced Students. Collier Macmillan International, 1975.