Walker, B. (1981). Welfare economics and urban problems. Methuen.
Cita Chicago (17th ed.)Walker, Bruce. Welfare Economics and Urban Problems. London: Methuen, 1981.
Cita MLA (9th ed.)Walker, Bruce. Welfare Economics and Urban Problems. Methuen, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.