World Health Organization. (2011). Manual for the laboratory diagnosis and virological surveillance of influenza. World Health Organization.
Citazione stile Chigago Style (17a edizione)World Health Organization. Manual for the Laboratory Diagnosis and Virological Surveillance of Influenza. Geneva, Switzerland: World Health Organization, 2011.
Citatione MLA (8a ed.)World Health Organization. Manual for the Laboratory Diagnosis and Virological Surveillance of Influenza. World Health Organization, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.