PAPPAS, J. L. (1979). Managerial Economics James L. Pappas And Mark Hirschey. The Dryden Press.
Lua i Stíl Chicago (17ú heag.)PAPPAS, Jamess L. Managerial Economics James L. Pappas And Mark Hirschey. The Dryden Press, 1979.
Lua MLA (8ú heag.)PAPPAS, Jamess L. Managerial Economics James L. Pappas And Mark Hirschey. The Dryden Press, 1979.
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