SpringerLink (Online service), Parfrey, P., & Barrett, B. (2009). Clinical Epidemiology: Practice and Methods (1st ed. 2009.). Totowa, NJ: Humana Press : Imprint: Humana.
Citación estilo ChicagoSpringerLink (Online service), Patrick Parfrey, y Brendan Barrett. Clinical Epidemiology: Practice and Methods. 1st ed. 2009. Totowa, NJ: Humana Press : Imprint: Humana, 2009.
Cita MLASpringerLink (Online service), Patrick Parfrey, y Brendan Barrett. Clinical Epidemiology: Practice and Methods. 1st ed. 2009. Totowa, NJ: Humana Press : Imprint: Humana, 2009.
Precaución: Estas citas no son 100% exactas.