APA (7th ed.) Citation

Hornby, W., Gammie, R., & Wall, S. (1997). Business economics. Longman.

Chicago Style (17th ed.) Citation

Hornby, Win, Robert Gammie, and Stuart Wall. Business Economics. London: Longman, 1997.

MLA (9th ed.) Citation

Hornby, Win, et al. Business Economics. Longman, 1997.