Style de citation APA (7e éd.)
Egan, G. (1994). The skilled helper: A problem-management approach to helping (5th ed.). Brooks / Cole.
Style de citation Chicago (17e éd.)
Egan, Gerard. The Skilled Helper: A Problem-management Approach to Helping. 5th ed. California: Brooks / Cole, 1994.
Style de citation MLA (9e éd.)
Egan, Gerard. The Skilled Helper: A Problem-management Approach to Helping. 5th ed. Brooks / Cole, 1994.
Attention : ces citations peuvent ne pas être correctes à 100%.