Centers for Disease Control and prevention (U.S.) & International Clearinghouse for Birth Defects Monitoring System. Birth defects surveillance: A manual for programme managers. World Health Organization.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Centers for Disease Control and prevention (U.S.) و International Clearinghouse for Birth Defects Monitoring System. Birth Defects Surveillance: A Manual for Programme Managers. Geneva: World Health Organization.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Centers for Disease Control and prevention (U.S.) و International Clearinghouse for Birth Defects Monitoring System. Birth Defects Surveillance: A Manual for Programme Managers. World Health Organization.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.