Lua APA (7ú heag.)
Egan, G. (2018). The skilled helper: A client-centred approach (2nd ed.). Cengage Learning.
Lua i Stíl Chicago (17ú heag.)
Egan, Gerard. The Skilled Helper: A Client-centred Approach. 2nd ed. Hampshire, UK: Cengage Learning, 2018.
Lua MLA (9ú heag.)
Egan, Gerard. The Skilled Helper: A Client-centred Approach. 2nd ed. Cengage Learning, 2018.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.