APA-referens (7:e uppl.)

Corbett, L. (2018). Understanding evil: A psychotherapist's guide. Routledge.

Chicago-referens (17:e uppl.)

Corbett, Lionel. Understanding Evil: A Psychotherapist's Guide. New York, NY, Oxon, OX: Routledge, 2018.

MLA-referens (9:e uppl.)

Corbett, Lionel. Understanding Evil: A Psychotherapist's Guide. Routledge, 2018.