APA (7th ed.) Citation

Lamme, M. O., L'Etang, J., & St. John, B. (2009). The State of Public Relations History. American Journalism, 26(1), 156.

Chicago Style (17th ed.) Citation

Lamme, Margot Opdycke, Jacquie L'Etang, and Burton St. John. "The State of Public Relations History." American Journalism 26, no. 1 (2009): 156.

MLA (9th ed.) Citation

Lamme, Margot Opdycke, et al. "The State of Public Relations History." American Journalism, vol. 26, no. 1, 2009, p. 156.