Egan, G. (2007). The skilled helper: A problem-management and opportunity-development approach to helping (8th ed.). Thomson, Brooks/Cole.
Chicago-čujuhus (17. p.)Egan, Gerard. The Skilled Helper: A Problem-management and Opportunity-development Approach to Helping. 8th ed. Belmont, USA: Thomson, Brooks/Cole, 2007.
MLA-čujuhus (9. p.)Egan, Gerard. The Skilled Helper: A Problem-management and Opportunity-development Approach to Helping. 8th ed. Thomson, Brooks/Cole, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.