Gaya APA

Hilliard, R, L, , ;, K, M, C. (2005). The broadcast century and beyond: a biography of American broadcasting, 4th ed . USA: Focal Press.

Gaya MLA

Hilliard, Robert, L., , ;, Keith,, Michael, C.. "The broadcast century and beyond: a biography of American broadcasting, 4th ed". USA: Focal Press, 2005. Text.