Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Hornby, Win, Bob Gammie, y Stuart Wall. Business Economics. London [etc.]: Longman, 1997.

Cita MLA (9a ed.)

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