Lua APA (7ú heag.)

Ferrell, O., Hirt Geoffrey, & Linda Ferrell. (2008). Business. McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Ferrell, O.C, Hirt Geoffrey, agus Linda Ferrell. Business. Boston: McGraw-Hill, 2008.

Lua MLA (9ú heag.)

Ferrell, O.C, et al. Business. McGraw-Hill, 2008.

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