APA (7th ed.) Citation

Rogers, E. M. (1995). Diffusion of innovations (4th ed.). The Free Press.

Chicago Style (17th ed.) Citation

Rogers, Everett M. Diffusion of Innovations. 4th ed. New York: The Free Press, 1995.

MLA (9th ed.) Citation

Rogers, Everett M. Diffusion of Innovations. 4th ed. The Free Press, 1995.