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. Monterey, Calif.: Brooks/Cole, 1982.
Citatione MLA (9a ed.)
Egan, Gerard. The Skilled Helper: Model, Skills, and Methods for Effective Helping. 2nd ed. Brooks/Cole, 1982.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.