Cita APA (7th ed.)

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.

Cita Chicago (17th ed.)

Ruta, D., L. Camfield, i 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.

Cita MLA (9th ed.)

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.