APA (7th ed.) Citation

Lang, K., & Lang, G. E. (1963). Collective dynamics (2. print.). Crowell.

Chicago Style (17th ed.) Citation

Lang, Kurt, and Gladys Engel Lang. Collective Dynamics. 2. print. New York, NY: Crowell, 1963.

MLA (9th ed.) Citation

Lang, Kurt, and Gladys Engel Lang. Collective Dynamics. 2. print. Crowell, 1963.