World Health Organization. (2011). Manual for the laboratory diagnosis and virological surveillance of influenza. World Health Organization.
Čikaški stil citiranja (17. izdanje)World Health Organization. Manual for the Laboratory Diagnosis and Virological Surveillance of Influenza. Geneva, Switzerland: World Health Organization, 2011.
MLA način citiranja (8. izdanje)World Health Organization. Manual for the Laboratory Diagnosis and Virological Surveillance of Influenza. World Health Organization, 2011.
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