Brooks, I., & Weatherston, J. (1997). The business environment: Challenges and changes (2nd edition.). Financial Times.
Lua i Stíl Chicago (17ú heag.)Brooks, I., agus Jamie Weatherston. The Business Environment: Challenges and Changes. 2nd edition. New York: Financial Times, 1997.
Lua MLA (8ú heag.)Brooks, I., agus Jamie Weatherston. The Business Environment: Challenges and Changes. 2nd edition. Financial Times, 1997.
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