Cita APA (7th ed.)

Gregory, I. (1977). Psychiatry: Essentials of clinical practice with examination questions, answer, and comments. Little, Brown.

Cita Chicago (17th ed.)

Gregory, Ian. Psychiatry: Essentials of Clinical Practice with Examination Questions, Answer, and Comments. Little, Brown, 1977.

Cita MLA (9th ed.)

Gregory, Ian. Psychiatry: Essentials of Clinical Practice with Examination Questions, Answer, and Comments. Little, Brown, 1977.