Lua APA (7ú heag.)

Worthington, I., & Britton, C. (2009). The business environment (6th ed.). FT Prentice Hall.

Lua i Stíl Chicago (17ú heag.)

Worthington, Ian, agus Chris Britton. The Business Environment. 6th ed. Harlow, England ; New York: FT Prentice Hall, 2009.

Lua MLA (8ú heag.)

Worthington, Ian, agus Chris Britton. The Business Environment. 6th ed. FT Prentice Hall, 2009.

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