APA (7th ed.) Citation

Shoemaker, P., & Vos, T. (2009). Gatekeeping theory (1a. ed.). Routledge.

Chicago Style (17th ed.) Citation

Shoemaker, Pamela, and Tim Vos. Gatekeeping Theory. 1a. ed. Nueva York: Routledge, 2009.

MLA (9th ed.) Citation

Shoemaker, Pamela, and Tim Vos. Gatekeeping Theory. 1a. ed. Routledge, 2009.