APA (7e ed.) Bronvermelding

Shulman, L. (1984). The Skills of helping: Individuals and groups (2nd ed.). F.E. Peacock Publishers.

Chicago (17e ed.) Bronvermelding

Shulman, Lawrence. The Skills of Helping: Individuals and Groups. 2nd ed. Itasca, Ill: F.E. Peacock Publishers, 1984.

MLA (9e ed.) Bronvermelding

Shulman, Lawrence. The Skills of Helping: Individuals and Groups. 2nd ed. F.E. Peacock Publishers, 1984.