APA (7th ed.) Citation

Ihlen, Fredriksson, & Ruler. (2009). Public relations and social theory. Routledge.

Chicago Style (17th ed.) Citation

Ihlen, Fredriksson, and Ruler. Public Relations and Social Theory. New York: Routledge, 2009.

MLA (8th ed.) Citation

Ihlen, et al. Public Relations and Social Theory. Routledge, 2009.