APA-viite (7. p.)

Williamson, M. A. 1. (1929). The social worker in a group. Harper.

Chicago-viite (17. p.)

Williamson, Margaretta A. 1891. The Social Worker in a Group. New York: Harper, 1929.

MLA-viite (9. p.)

Williamson, Margaretta A. 1891. The Social Worker in a Group. Harper, 1929.