World Health Organization. (2011). Manual for the laboratory diagnosis and virological surveillance of influenza. World Health Organization.
Chicago Style (17th ed.) CitationWorld Health Organization. Manual for the Laboratory Diagnosis and Virological Surveillance of Influenza. Geneva, Switzerland: World Health Organization, 2011.
MLA引文World Health Organization. Manual for the Laboratory Diagnosis and Virological Surveillance of Influenza. World Health Organization, 2011.
警告：這些引文格式不一定是100％准確.