TRUETT, L. J. (1987). Economics Lila J. Truett, Dale B. Truett. times Miror/Mosby College.
Lua i Stíl Chicago (17ú heag.)TRUETT, Lila J. Economics Lila J. Truett, Dale B. Truett. times Miror/Mosby College, 1987.
Lua MLA (8ú heag.)TRUETT, Lila J. Economics Lila J. Truett, Dale B. Truett. times Miror/Mosby College, 1987.
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