Não informado. (2004). Health educators at work. University of North Carolina, Department of Public Health Education.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Health Educators at Work. Chapel Hill, NC: University of North Carolina, Department of Public Health Education, 2004.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Health Educators at Work. University of North Carolina, Department of Public Health Education, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.