APA引文

Shoemaker, P. J. (1991). Communication concepts 3 Gatekeeping. Sage Pub..

Chicago Style (17th ed.) Citation

Shoemaker, Pamela J. Communication Concepts 3 Gatekeeping. Newbury Park: Sage Pub., 1991.

MLA引文

Shoemaker, Pamela J. Communication Concepts 3 Gatekeeping. Sage Pub., 1991.