Cita APA (7a ed.)

Hilliard, R. L., & Keith, M. C. (1992). The Broadcast century: A biography of american broadcasting. Focal Press.

Cita Chicago Style (17a ed.)

Hilliard, Robert L., y Michael C. Keith. The Broadcast Century: A Biography of American Broadcasting. Boston [etc.]: Focal Press, 1992.

Cita MLA (9a ed.)

Hilliard, Robert L., y Michael C. Keith. The Broadcast Century: A Biography of American Broadcasting. Focal Press, 1992.