APA (7th ed.) Citation

Columbia University Press, Northen, H., & Roberts, R. W. (1976). Theories of social work with groups. Columbia University Press.

Chicago Style (17th ed.) Citation

Columbia University Press, Helen Northen, and Robert W. Roberts. Theories of Social Work with Groups. New York: Columbia University Press, 1976.

MLA (8th ed.) Citation

Columbia University Press, et al. Theories of Social Work with Groups. Columbia University Press, 1976.

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