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Lua i Stíl Chicago (17ú heag.)BROFENBRENNER, Martin ... [et al.]. Economics Martin Brofengrenner, Warner Sichel And Wayland Gardner. Houghton Mifflin Company, 1987.
Lua MLA (8ú heag.)BROFENBRENNER, Martin ... [et al.]. Economics Martin Brofengrenner, Warner Sichel And Wayland Gardner. Houghton Mifflin Company, 1987.
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