The ACA Encyclopedia of Counseling by American Counseling Association Staff (Contribution by)

APA Dictionary of Psychology by Gary R. Vandenbos (Editor)

Baker Encyclopedia of Psychology and Counseling by David G. Benner (Editor); Peter C. Hill (Editor)

Dictionary of Psychology by Raymond J. Corsini

Diagnostic and Statistical Manual of Mental Disorders by American Psychiatric Association

Encyclopedia of Counseling by Frederick T. L. Leong (Editor)

Encyclopedia of Counseling by Howard Rosenthal

Encyclopedia of Multicultural Psychology by Yolanda Kaye Jackson (Editor)

Magill's Encyclopedia of Social Science, Psychology by Nancy A. Piotrowski (Editor); Tracy Irons-Geroges (Editorial Coordinator); Christina J. Moose (Editor-In-Chief)

Psychologists' Desk Reference by Gerald P. Koocher (Editor); John C. Norcross (Editor); Beverly A. Greene (Editor)

Encyclopedia of Industrial and Organizational Psychology by Steven G. Rogelberg (Editor)

Handbook of Child Psychology by Richard M. Lerner; William Damon (Editor)