APA-referens (7:e uppl.)
ebrary, Inc. (1991). Twelve steps to self-improvement: A Crisp assessment profile. Crisp Publications, Inc..
Chicago-referens (17:e uppl.)
ebrary, Inc. Twelve Steps to Self-improvement: A Crisp Assessment Profile. Los Altos, Calif.: Crisp Publications, Inc., 1991.
MLA-referens (9:e uppl.)
ebrary, Inc. Twelve Steps to Self-improvement: A Crisp Assessment Profile. Crisp Publications, Inc., 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.