HIRSCHEY, M. (1990). Study Guide Managerial Economics Mark Hirschey , James L. Pappas. The Dryden Press.
Lua i Stíl Chicago (17ú heag.)HIRSCHEY, Mark. Study Guide Managerial Economics Mark Hirschey , James L. Pappas. The Dryden Press, 1990.
Lua MLA (8ú heag.)HIRSCHEY, Mark. Study Guide Managerial Economics Mark Hirschey , James L. Pappas. The Dryden Press, 1990.
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