Okrasa, W. (1999). The dynamics of poverty and the effectiveness of Poland's safety net, 1993-96. World Bank.
芝加哥风格引文Okrasa, Wlodzimierz. The Dynamics of Poverty and the Effectiveness of Poland's Safety Net, 1993-96. Washington, D.C: World Bank, 1999.
MLA引文Okrasa, Wlodzimierz. The Dynamics of Poverty and the Effectiveness of Poland's Safety Net, 1993-96. World Bank, 1999.
警告：这些引文格式不一定是100％准确.