APA aipamena

Egan, G. (1998). The skilled helper: A problem-management approach to helping (6th ed.). Brooks/Cole Pub.

Chicago Style aipamena

Egan, Gerard. The Skilled Helper: A Problem-management Approach to Helping. 6th ed. Pacific Grove, CA: Brooks/Cole Pub, 1998.

MLA aipamena

Egan, Gerard. The Skilled Helper: A Problem-management Approach to Helping. 6th ed. Brooks/Cole Pub, 1998.