APA (7th ed.) Citation

Lewis, W. C. (1972). Why people change: The psychology of influence. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Lewis, William Champlin. Why People Change: The Psychology of Influence. New York: Holt, Rinehart and Winston, 1972.

MLA (9th ed.) Citation

Lewis, William Champlin. Why People Change: The Psychology of Influence. Holt, Rinehart and Winston, 1972.

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