Roberts, R. W., & Northen, H. . e. (1976). Theories of social work with groups. Columbia University Press.
Chicago Style (17th ed.) CitationRoberts, Robert W., and Helen e. Northen. Theories of Social Work with Groups. New York: Columbia University Press, 1976.
MLA (9th ed.) CitationRoberts, Robert W., and Helen e. Northen. Theories of Social Work with Groups. Columbia University Press, 1976.
Warning: These citations may not always be 100% accurate.