Worthington, I., Britton, C., & Thompson, E. (2018). The business environment: A global perspective (Eighth edition.). Pearson.
Lua i Stíl Chicago (17ú heag.)Worthington, Ian, Chris Britton, agus Edward Thompson. The Business Environment: A Global Perspective. Eighth edition. Harlow, England ; New York: Pearson, 2018.
Lua MLA (8ú heag.)Worthington, Ian, et al. The Business Environment: A Global Perspective. Eighth edition. Pearson, 2018.
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