Cita APA (7a ed.)
Excerpta Medica Foundation. International congress series. Excerpta Medica Foundation.
Cita Chicago Style (17a ed.)
Excerpta Medica Foundation. International Congress Series. Amsterdam ; New York: Excerpta Medica Foundation.
Cita MLA (9a ed.)
Excerpta Medica Foundation. International Congress Series. Excerpta Medica Foundation.
Precaución: Estas citas no son 100% exactas.