Cropper, M. L., & Subramanian, U. (1995). Public choices between lifesaving programs: How important are lives saved? World Bank.
Chicago-referens (17:e uppl.)Cropper, Maureen L., och Uma Subramanian. Public Choices Between Lifesaving Programs: How Important Are Lives Saved? Washington, D.C: World Bank, 1995.
MLA-referens (9:e uppl.)Cropper, Maureen L., och Uma Subramanian. Public Choices Between Lifesaving Programs: How Important Are Lives Saved? World Bank, 1995.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.