Cita APA (7th ed.)

Kopits, E., & Cropper, M. (2003). Traffic fatalities and economic growth. Infrasturcture and Environment, Development Research Group, World Bank.

Cita Chicago (17th ed.)

Kopits, Elizabeth, i Maureen Cropper. Traffic Fatalities and Economic Growth. Washington, D.C: Infrasturcture and Environment, Development Research Group, World Bank, 2003.

Cita MLA (9th ed.)

Kopits, Elizabeth, i Maureen Cropper. Traffic Fatalities and Economic Growth. Infrasturcture and Environment, Development Research Group, World Bank, 2003.