Edgmand, M. R. (1998). Economics and contemporary issues (4th.ed.). Dryden.
Lua i Stíl Chicago (17ú heag.)Edgmand, Michael R. Economics and Contemporary Issues. 4th.ed. Philadelphia: Dryden, 1998.
Lua MLA (9ú heag.)Edgmand, Michael R. Economics and Contemporary Issues. 4th.ed. Dryden, 1998.
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