Παραπομπή σε μορφή APA (7η εκδ.)

Gregory, I., & Smeltzer, D. J. (1977). Psychiatry: Essentials of clinical practice with examination questions, answers, and comments. Little, Brown and Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gregory, Ian, και Donald J. Smeltzer. Psychiatry: Essentials of Clinical Practice with Examination Questions, Answers, and Comments. Boston: Little, Brown and Company, 1977.

Παραπομπή σε μορφή MLA (8th εκδ.)

Gregory, Ian, και Donald J. Smeltzer. Psychiatry: Essentials of Clinical Practice with Examination Questions, Answers, and Comments. Little, Brown and Company, 1977.