APA-viite (7. p.)
Egan, G. (2010). Exercises in helping skills: A manual to accompany The skilled helper, a problem-management and opportunity-development approach to helping, ninth edition. Brooks/Cole.
Chicago-viite (17. p.)
Egan, Gerard. Exercises in Helping Skills: A Manual to Accompany The Skilled Helper, a Problem-management and Opportunity-development Approach to Helping, Ninth Edition. Belmont, Calif.: Brooks/Cole, 2010.
MLA-viite (9. p.)
Egan, Gerard. Exercises in Helping Skills: A Manual to Accompany The Skilled Helper, a Problem-management and Opportunity-development Approach to Helping, Ninth Edition. Brooks/Cole, 2010.
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