APA (7th ed.) Citation

Trecker, H. B. (1955). Social group work; principles and practices. Association Press.

Chicago Style (17th ed.) Citation

Trecker, Harleigh Bradley. Social Group Work; Principles and Practices. New York: Association Press, 1955.

MLA (9th ed.) Citation

Trecker, Harleigh Bradley. Social Group Work; Principles and Practices. Association Press, 1955.

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