APA (7th ed.) Citation

Darke, M., Lucas, B., & Keaney, B. (1990). A question of courage. Oxford University Press.

Chicago Style (17th ed.) Citation

Darke, Marjorie, Bill Lucas, and Brian Keaney. A Question of Courage. Oxford: Oxford University Press, 1990.

MLA (9th ed.) Citation

Darke, Marjorie, et al. A Question of Courage. Oxford University Press, 1990.