APA (7th ed.) Citation

Trecker, H. B. (1972). Social group work, principles and practices (Thoroughly rewritten, updated and expanded.). Association Press.

Chicago Style (17th ed.) Citation

Trecker, Harleigh Bradley. Social Group Work, Principles and Practices. Thoroughly rewritten, updated and expanded. New York: Association Press, 1972.

MLA (8th ed.) Citation

Trecker, Harleigh Bradley. Social Group Work, Principles and Practices. Thoroughly rewritten, updated and expanded. Association Press, 1972.