Keith, M. C. (1997). The radio station (4th ed.). Focal Press.
Cita Chicago (17th ed.)Keith, Michael C. The Radio Station. 4th ed. Boston: Focal Press, 1997.
Cita MLA (9th ed.)Keith, Michael C. The Radio Station. 4th ed. Focal Press, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.