ebrary, Inc, Kraus, R., Zack, J. S., & Stricker, G. (2010). Online counseling: A handbook for mental health professionals (2nd ed.). Elsevier.
Lua i Stíl Chicago (17ú heag.)ebrary, Inc, Ron Kraus, Jason S. Zack, agus George Stricker. Online Counseling: A Handbook for Mental Health Professionals. 2nd ed. Amsterdam: Elsevier, 2010.
Lua MLA (9ú heag.)ebrary, Inc, et al. Online Counseling: A Handbook for Mental Health Professionals. 2nd ed. Elsevier, 2010.
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