Egan, G. (1994). Exercises in helping skills: A manual to accompany the skilled helper (5η έκδ.). Brooks/Cole Publishing Company.
Chicago Style (17th ed.) CitationEgan, Gerard. Exercises in Helping Skills: A Manual to Accompany the Skilled Helper. 5η έκδ. California: Brooks/Cole Publishing Company, 1994.
MLA (8th ed.) CitationEgan, Gerard. Exercises in Helping Skills: A Manual to Accompany the Skilled Helper. 5η έκδ. Brooks/Cole Publishing Company, 1994.
Warning: These citations may not always be 100% accurate.