Dyfyniad APA

ebrary, Inc, Kraus, R., Zack, J. S., & Stricker, G. (2010). Online counseling: A handbook for mental health professionals (2nd ed.). Elsevier.

Dyfyniad Arddull Chicago

ebrary, Inc, Ron Kraus, Jason S. Zack, and George Stricker. Online Counseling: A Handbook for Mental Health Professionals. 2nd ed. Amsterdam: Elsevier, 2010.

Dyfyniad MLA

ebrary, Inc, et al. Online Counseling: A Handbook for Mental Health Professionals. 2nd ed. Elsevier, 2010.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.