Cita APA (7th ed.)
Egan, G. (2018). The skilled helper: A client-centred approach (2nd ed.). Cengage Learning.
Cita Chicago (17th ed.)
Egan, Gerard. The Skilled Helper: A Client-centred Approach. 2nd ed. Hampshire, UK: Cengage Learning, 2018.
Cita MLA (9th ed.)
Egan, Gerard. The Skilled Helper: A Client-centred Approach. 2nd ed. Cengage Learning, 2018.
Atenció: Aquestes cites poden no estar 100% correctes.