Cita APA

Cropper, M. L., & World Bank Development Research Group. (1997). The health effects of air pollution in Delhi, India. World Bank, Development Research Group.

Citación estilo Chicago

Cropper, Maureen L., y World Bank Development Research Group. The Health Effects of Air Pollution in Delhi, India. Washington, DC: World Bank, Development Research Group, 1997.

Cita MLA

Cropper, Maureen L., y World Bank Development Research Group. The Health Effects of Air Pollution in Delhi, India. World Bank, Development Research Group, 1997.