Fuchs, V. R., McClellan, M., & Skinner, J. (2001). Area differences in utilization of medical care and mortality among U.S. elderly. National Bureau of Economic Research.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Fuchs, Victor R., Mark McClellan, و Jonathan Skinner. Area Differences in Utilization of Medical Care and Mortality Among U.S. Elderly. Cambridge: National Bureau of Economic Research, 2001.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Fuchs, Victor R., et al. Area Differences in Utilization of Medical Care and Mortality Among U.S. Elderly. National Bureau of Economic Research, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.