Truett, L. J. (1987). Microeconomics. Times Mirror/ Mosby College publ..
Lua i Stíl Chicago (17ú heag.)Truett, Lila J. Microeconomics. Toronto: Times Mirror/ Mosby College publ., 1987.
Lua MLA (9ú heag.)Truett, Lila J. Microeconomics. Times Mirror/ Mosby College publ., 1987.
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