MILLER, R. L. (1981). Economics Issues For Consumers Roger Leroy Miller. West Publishing Company.
Lua i Stíl Chicago (17ú heag.)MILLER, Roger LeRoy. Economics Issues For Consumers Roger Leroy Miller. West Publishing Company, 1981.
Lua MLA (8ú heag.)MILLER, Roger LeRoy. Economics Issues For Consumers Roger Leroy Miller. West Publishing Company, 1981.
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