Zuvekas,Clarence. (1979). Economic Development - An Introduction. St. Martin`s Press.
Lua i Stíl Chicago (17ú heag.)Zuvekas,Clarence. Economic Development - An Introduction. New York: St. Martin`s Press, 1979.
Lua MLA (9ú heag.)Zuvekas,Clarence. Economic Development - An Introduction. St. Martin`s Press, 1979.
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