Perdue, M. L., & Nguyen, T. (2012). The WHO research agenda for influenza: Two years later. World Health Organization.
Citación estilo ChicagoPerdue, Michael L., y Tim Nguyen. The WHO Research Agenda for Influenza: Two Years Later. World Health Organization, 2012.
Cita MLAPerdue, Michael L., y Tim Nguyen. The WHO Research Agenda for Influenza: Two Years Later. World Health Organization, 2012.
Precaución: Estas citas no son 100% exactas.