Lua APA (7ú heag.)

FERRELL, O. C., & HIRT, G. (2003). Business: A changing world.-- ed.4. McGraw-Hill irwin.

Lua i Stíl Chicago (17ú heag.)

FERRELL, O. C., agus Geoffrey HIRT. Business: A Changing World.-- Ed.4. Boston: McGraw-Hill irwin, 2003.

Lua MLA (9ú heag.)

FERRELL, O. C., agus Geoffrey HIRT. Business: A Changing World.-- Ed.4. McGraw-Hill irwin, 2003.

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