Cita APA (7a ed.)

Phythian, M. (2013). Understanding the intelligence cycle. Routledge.

Cita Chicago Style (17a ed.)

Phythian, Mark. Understanding the Intelligence Cycle. London: Routledge, 2013.

Cita MLA (9a ed.)

Phythian, Mark. Understanding the Intelligence Cycle. Routledge, 2013.