O'Brien, M., & Penna, S. (1998). Theorising welfare: Enlightenment and modern society. Sage.
芝加哥风格引文O'Brien, Martin, 与 Sue Penna. Theorising Welfare: Enlightenment and Modern Society. London ; Thousand Oaks, Calif.: Sage, 1998.
MLA引文O'Brien, Martin, 与 Sue Penna. Theorising Welfare: Enlightenment and Modern Society. Sage, 1998.
警告：这些引文格式不一定是100％准确.