World Health Organization. Regional Office for Europe. (2020). Coronavirus disease (COVID-19) pandemic: Visit COVID-19 site for news, technical guidance and protection advice [electronic resource]. WHO Regional Office for Europe.
Chicago Style (17th ed.) CitationWorld Health Organization. Regional Office for Europe. Coronavirus Disease (COVID-19) Pandemic: Visit COVID-19 Site for News, Technical Guidance and Protection Advice [electronic Resource]. Denmark: WHO Regional Office for Europe, 2020.
MLA引文World Health Organization. Regional Office for Europe. Coronavirus Disease (COVID-19) Pandemic: Visit COVID-19 Site for News, Technical Guidance and Protection Advice [electronic Resource]. WHO Regional Office for Europe, 2020.
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