APA (7th ed.) Citation

Shoemaker, P. J. (1991). Gatekeeping Communication concepts.

Chicago Style (17th ed.) Citation

Shoemaker, Pamela J. "Gatekeeping." Communication Concepts 1991.

MLA (8th ed.) Citation

Shoemaker, Pamela J. "Gatekeeping." Communication Concepts, 1991.

Warning: These citations may not always be 100% accurate.