Cita APA (7th ed.)
(1976). How to listen assertively. International society for general semitics.
Cita Chicago (17th ed.)
How to Listen Assertively. San Francisco: International society for general semitics, 1976.
Cita MLA (9th ed.)
How to Listen Assertively. International society for general semitics, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.