APA (7th ed.) Citation

Schrank, J. (1991). Understanding mass media (4th ed.). National textbook.

Chicago Style (17th ed.) Citation

Schrank, Jeffrey. Understanding Mass Media. 4th ed. Illinois: National textbook, 1991.

MLA (9th ed.) Citation

Schrank, Jeffrey. Understanding Mass Media. 4th ed. National textbook, 1991.

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