APA-ийн эшлэл(7 дахь хэвлэлт)

Egan, G. (2010). The skilled helper: A problem-management and opportunity-development approach to helping (9th ed.). Brooks/Cole.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Egan, Gerard. The Skilled Helper: A Problem-management and Opportunity-development Approach to Helping. 9th ed. Australia: Brooks/Cole, 2010.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Egan, Gerard. The Skilled Helper: A Problem-management and Opportunity-development Approach to Helping. 9th ed. Brooks/Cole, 2010.