Ruta, D., Camfield, L., & Donaldson, C. (2006). Sen and the art of quality of life maintenance: Towards a working definition of quality of life. Wellbeing in Developing Countries Research Group.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ruta, D., L. Camfield, و C. Donaldson. Sen and the Art of Quality of Life Maintenance: Towards a Working Definition of Quality of Life. Wellbeing in Developing Countries Research Group, 2006.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Ruta, D., et al. Sen and the Art of Quality of Life Maintenance: Towards a Working Definition of Quality of Life. Wellbeing in Developing Countries Research Group, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.