Shoemaker, P. J. (1991). Gatekeeping Communication concepts.
Chicago Style (17th ed.) CitationShoemaker, Pamela J. "Gatekeeping." Communication Concepts 1991.
MLA (9th ed.) CitationShoemaker, Pamela J. "Gatekeeping." Communication Concepts, 1991.
Warning: These citations may not always be 100% accurate.