Brooks, I. (1997). The business environment: Challenges and changes. Prentice Hall.
Cita Chicago (17th ed.)Brooks, Ian. The Business Environment: Challenges and Changes. London: Prentice Hall, 1997.
Cita MLA (9th ed.)Brooks, Ian. The Business Environment: Challenges and Changes. Prentice Hall, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.