Cropper, M. L., & Subramanian, U. (1995). Public choices between lifesaving programs: How important are lives saved? World Bank.
芝加哥风格引文Cropper, Maureen L., 与 Uma Subramanian. Public Choices Between Lifesaving Programs: How Important Are Lives Saved? Washington, D.C: World Bank, 1995.
MLA引文Cropper, Maureen L., 与 Uma Subramanian. Public Choices Between Lifesaving Programs: How Important Are Lives Saved? World Bank, 1995.
警告：这些引文格式不一定是100％准确.