APA (7e ed.) Bronvermelding
Egan, G. (2007). The skilled helper: A problem-management and opportunity-development approach to helping (8th ed.). Thomson, Brooks/Cole.
Chicago (17e ed.) Bronvermelding
Egan, Gerard. The Skilled Helper: A Problem-management and Opportunity-development Approach to Helping. 8th ed. Belmont, USA: Thomson, Brooks/Cole, 2007.
MLA (9e ed.) Bronvermelding
Egan, Gerard. The Skilled Helper: A Problem-management and Opportunity-development Approach to Helping. 8th ed. Thomson, Brooks/Cole, 2007.
Let op: Deze citaties zijn niet altijd 100% accuraat.