Walker, R. (2005). Social security and welfare: Concepts and comparisons. Open University Press.
Chicago-čujuhus (17. p.)Walker, Robert. Social Security and Welfare: Concepts and Comparisons. Maidenhead: Open University Press, 2005.
MLA-čujuhus (9. p.)Walker, Robert. Social Security and Welfare: Concepts and Comparisons. Open University Press, 2005.
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