Cita APA (7a ed.)

Birkinshaw, P., Lewis, N., Graham, C., & Beyleveld, D. (1990). Reforming the secret state. Open University Press.

Cita Chicago Style (17a ed.)

Birkinshaw, Patrick, Norman Lewis, Cosmo Graham, y Deryck Beyleveld. Reforming the Secret State. Milton Keynes [etc.]: Open University Press, 1990.

Cita MLA (9a ed.)

Birkinshaw, Patrick, et al. Reforming the Secret State. Open University Press, 1990.