APA (7e ed.) Bronvermelding
Egan, G. (1986). The skilled helper: A systematic approach to effective helping (3rd ed.). Brooks / Cole.
Chicago (17e ed.) Bronvermelding
Egan, Gerard. The Skilled Helper: A Systematic Approach to Effective Helping. 3rd ed. California: Brooks / Cole, 1986.
MLA (9e ed.) Bronvermelding
Egan, Gerard. The Skilled Helper: A Systematic Approach to Effective Helping. 3rd ed. Brooks / Cole, 1986.
Let op: Deze citaties zijn niet altijd 100% accuraat.