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,: F.E.Peacock Publishers, 1984.

MLA (8e ed.) Bronvermelding

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