Citazione Stile APA (7a Edizione)

Egan, G. (1982). The skilled helper: Model, skills, and methods for effective helping (2nd ed.). Brooks / Cole.

Citazione stile Chigago Style (17a edizione)

Egan, Gerard. The Skilled Helper: Model, Skills, and Methods for Effective Helping. 2nd ed. California: Brooks / Cole, 1982.

Citatione MLA (9a ed.)

Egan, Gerard. The Skilled Helper: Model, Skills, and Methods for Effective Helping. 2nd ed. Brooks / Cole, 1982.