APA (7th ed.) Citation

World Congress of Psychiatry & López Ibor, J. J. (19). Proceedings / Fourth World Congress of Psychiatry. Excerpta Medica Foundation.

Chicago Style (17th ed.) Citation

World Congress of Psychiatry and Juan José López Ibor. Proceedings / Fourth World Congress of Psychiatry. Amsterdam: Excerpta Medica Foundation, 19.

MLA (9th ed.) Citation

World Congress of Psychiatry and Juan José López Ibor. Proceedings / Fourth World Congress of Psychiatry. Excerpta Medica Foundation, 19.