World Health Organization. Regional Office for Europe. (2020). COVID-19 situation in the region: Total reports [electronic resource]. WHO Regional Office for the Eastern Mediterranean.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)World Health Organization. Regional Office for Europe. COVID-19 Situation in the Region: Total Reports [electronic Resource]. Cairo: WHO Regional Office for the Eastern Mediterranean, 2020.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)World Health Organization. Regional Office for Europe. COVID-19 Situation in the Region: Total Reports [electronic Resource]. WHO Regional Office for the Eastern Mediterranean, 2020.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.