APA-viite (7. p.)

Barr, N. A. (1998). The economics of the welfare state (3rd ed.). Stanford University Press.

Chicago-viite (17. p.)

Barr, N. A. The Economics of the Welfare State. 3rd ed. Stanford, Calif.: Stanford University Press, 1998.

MLA-viite (8. p.)

Barr, N. A. The Economics of the Welfare State. 3rd ed. Stanford University Press, 1998.