Não informado. Public Health Service Publications. U.S. Department of Health Education and Welfare.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Public Health Service Publications. Washington: U.S. Department of Health Education and Welfare.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Public Health Service Publications. U.S. Department of Health Education and Welfare.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.