Okrasa, W. (1999). The dynamics of poverty and the effectiveness of Poland's safety net, 1993-96. World Bank.
Cita Chicago (17th ed.)Okrasa, Wlodzimierz. The Dynamics of Poverty and the Effectiveness of Poland's Safety Net, 1993-96. Washington, D.C: World Bank, 1999.
Cita MLA (9th ed.)Okrasa, Wlodzimierz. The Dynamics of Poverty and the Effectiveness of Poland's Safety Net, 1993-96. World Bank, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.