Varr,Nicholas. (2012). Economics of the welfare state (5th.). Oxford University Press.
Chicago Style aipamenaVarr,Nicholas. Economics of the Welfare State. 5th. New York: Oxford University Press, 2012.
MLA aipamenaVarr,Nicholas. Economics of the Welfare State. 5th. Oxford University Press, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.