Tohutoro APA (7th ed.)
Egan, G. (1994). The skilled helper: A problem-management approach to helping (5th ed.). Brooks / Cole.
Tohutoru Kātū Chicago (17th ed.)
Egan, Gerard. The Skilled Helper: A Problem-management Approach to Helping. 5th ed. California: Brooks / Cole, 1994.
Tohutoro MLA (9th ed.)
Egan, Gerard. The Skilled Helper: A Problem-management Approach to Helping. 5th ed. Brooks / Cole, 1994.
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