Cita APA (7th ed.)

Phillips, H. U. (1957). Essentials of social group work skill. Association Press.

Cita Chicago (17th ed.)

Phillips, Helen Upson. Essentials of Social Group Work Skill. New York: Association Press, 1957.

Cita MLA (9th ed.)

Phillips, Helen Upson. Essentials of Social Group Work Skill. Association Press, 1957.