Lua APA (7ú heag.)
Barr, N. A. (2001). The welfare state as piggy bank: Information, risk, uncertainty, and the role of the state. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)
Barr, N. A. The Welfare State as Piggy Bank: Information, Risk, Uncertainty, and the Role of the State. Oxford ; New York: Oxford University Press, 2001.
Lua MLA (9ú heag.)
Barr, N. A. The Welfare State as Piggy Bank: Information, Risk, Uncertainty, and the Role of the State. Oxford University Press, 2001.
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