Παραπομπή σε μορφή APA (7η εκδ.)

Egan, G. (1975). The skilled helper: A model for systematic helping and interpersonal relating. Brooks / Cole.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Egan, Gerard. The Skilled Helper: A Model for Systematic Helping and Interpersonal Relating. California: Brooks / Cole, 1975.

Παραπομπή σε μορφή MLA (9th εκδ.)

Egan, Gerard. The Skilled Helper: A Model for Systematic Helping and Interpersonal Relating. Brooks / Cole, 1975.