Hirschey, M., & Pappas, J. L. (1998). Fundamentals of managerial economics (6th ed.). Dryden Press.
Lua i Stíl Chicago (17ú heag.)Hirschey, Mark, agus James L. Pappas. Fundamentals of Managerial Economics. 6th ed. Chicago: Dryden Press, 1998.
Lua MLA (9ú heag.)Hirschey, Mark, agus James L. Pappas. Fundamentals of Managerial Economics. 6th ed. Dryden Press, 1998.
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