Hammond, P. B., & Coppock, R. (1990). Valuing health risks, costs, and benefits for environmental decision making: Report of a conference. National Academy Press.
Cita Chicago (17th ed.)Hammond, P. Brett, i Rob Coppock. Valuing Health Risks, Costs, and Benefits for Environmental Decision Making: Report of a Conference. Washington, D.C.: National Academy Press, 1990.
Cita MLA (9th ed.)Hammond, P. Brett, i Rob Coppock. Valuing Health Risks, Costs, and Benefits for Environmental Decision Making: Report of a Conference. National Academy Press, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.