Cita APA (7a ed.)

World Congress of Psychiatry. 4 Madrid (1966) & López Ibor, J. J. (1967). Proceedings / Fourth World Congress of Psychiatry. Excerpta Medica Foundation.

Cita Chicago Style (17a ed.)

World Congress of Psychiatry. 4 Madrid (1966) y Juan José López Ibor. Proceedings / Fourth World Congress of Psychiatry. Amsterdam: Excerpta Medica Foundation, 1967.

Cita MLA (9a ed.)

World Congress of Psychiatry. 4 Madrid (1966) y Juan José López Ibor. Proceedings / Fourth World Congress of Psychiatry. Excerpta Medica Foundation, 1967.