Todaro, M. P. (1997). Economic development (6th ed.). Addison-Wesley.
Lua i Stíl Chicago (17ú heag.)Todaro, Michael P. Economic Development. 6th ed. Reading, Mass.: Addison-Wesley, 1997.
Lua MLA (8ú heag.)Todaro, Michael P. Economic Development. 6th ed. Addison-Wesley, 1997.
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