Haveman, R. H. (1976). The economics of the public sector (2nd ed.). Wiley.
Lua i Stíl Chicago (17ú heag.)Haveman, Robert H. The Economics of the Public Sector. 2nd ed. Santa Barbara [Calif.]: Wiley, 1976.
Lua MLA (8ú heag.)Haveman, Robert H. The Economics of the Public Sector. 2nd ed. Wiley, 1976.
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