Pappas, J. L., & Hirschey, M. (1989). Fundamentals of managerial economics (3rd.ed.). Dryden.
Lua i Stíl Chicago (17ú heag.)Pappas, James L., agus Mark Hirschey. Fundamentals of Managerial Economics. 3rd.ed. Chicago: Dryden, 1989.
Lua MLA (9ú heag.)Pappas, James L., agus Mark Hirschey. Fundamentals of Managerial Economics. 3rd.ed. Dryden, 1989.
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