APA (7th ed.) Citation

Rogers & Shoemaker. (1971). Communication of innovations: A cross-cultural approach (2nd ed.). The Free Press.

Chicago Style (17th ed.) Citation

Rogers and Shoemaker. Communication of Innovations: A Cross-cultural Approach. 2nd ed. New York: The Free Press, 1971.

MLA (8th ed.) Citation

Rogers and Shoemaker. Communication of Innovations: A Cross-cultural Approach. 2nd ed. The Free Press, 1971.