HENDERSON DAVID R. (1993). FORTUNE ENCYCLOPAEDIA OF ECONOMICS. WARNER BOOK.
Lua i Stíl Chicago (17ú heag.)HENDERSON DAVID R. FORTUNE ENCYCLOPAEDIA OF ECONOMICS. NEW YORK: WARNER BOOK, 1993.
Lua MLA (9ú heag.)HENDERSON DAVID R. FORTUNE ENCYCLOPAEDIA OF ECONOMICS. WARNER BOOK, 1993.
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