APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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