APA (7th ed.) Citation

Lang, K., & Lang, G. E. (1963). Collective dynamics (3.print.). Crowell.

Chicago Style (17th ed.) Citation

Lang, Kurt, and Gladys Engel Lang. Collective Dynamics. 3.print. New York: Crowell, 1963.

MLA (9th ed.) Citation

Lang, Kurt, and Gladys Engel Lang. Collective Dynamics. 3.print. Crowell, 1963.