Richards, J. C. (1997). Developing tactics for listening. Oxford University Press.
Cita Chicago (17th ed.)Richards, Jack C. Developing Tactics for Listening. New York: Oxford University Press, 1997.
Cita MLA (8th ed.)Richards, Jack C. Developing Tactics for Listening. Oxford University Press, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.