Cita APA (7th ed.)

Barr, N. (2012). Economics of the Welfare State (5th.). Oxford.

Cita Chicago (17th ed.)

Barr, Nicholas. Economics of the Welfare State. 5th. UK: Oxford, 2012.

Cita MLA (9th ed.)

Barr, Nicholas. Economics of the Welfare State. 5th. Oxford, 2012.