Cita APA (7th ed.)
Strain, B., & Wysong, P. A. M. (1979). Communication skills. Addison-Wesley Pub. Co..
Cita Chicago (17th ed.)
Strain, Barbara, i Patricia Ann Mayfield Wysong. Communication Skills. Reading, Mass.: Addison-Wesley Pub. Co., 1979.
Cita MLA (9th ed.)
Strain, Barbara, i Patricia Ann Mayfield Wysong. Communication Skills. Addison-Wesley Pub. Co., 1979.
Atenció: Aquestes cites poden no estar 100% correctes.