APA (7th ed.) Citation

Hopson, B., Scally, M., & Stafford, K. (1992). Transitions: The challenge of change. Mercury Books.

Chicago Style (17th ed.) Citation

Hopson, Barrie, Mike Scally, and Kevern Stafford. Transitions: The Challenge of Change. London: Mercury Books, 1992.

MLA (9th ed.) Citation

Hopson, Barrie, et al. Transitions: The Challenge of Change. Mercury Books, 1992.