TRUETT, L. J. (1984). Managerial Economics: Analysis, Problems And Cases Lila J. Truett And Dale B. Truett. South Western.
Lua i Stíl Chicago (17ú heag.)TRUETT, Lila J. Managerial Economics: Analysis, Problems And Cases Lila J. Truett And Dale B. Truett. South Western, 1984.
Lua MLA (8ú heag.)TRUETT, Lila J. Managerial Economics: Analysis, Problems And Cases Lila J. Truett And Dale B. Truett. South Western, 1984.
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