Gregory, I. (1977). Psychiatry: Essentials of clinical practice with examination questions, answer, and comments. Little, Brown.
Chicago-referens (17:e uppl.)Gregory, Ian. Psychiatry: Essentials of Clinical Practice with Examination Questions, Answer, and Comments. Little, Brown, 1977.
MLA-referens (9:e uppl.)Gregory, Ian. Psychiatry: Essentials of Clinical Practice with Examination Questions, Answer, and Comments. Little, Brown, 1977.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.