Cita APA (7a ed.)

Williams, P. D., & McDonald, M. (2018). Security studies: An introduction (3th ed.). Routledge, Taylor & Francis Group.

Cita Chicago Style (17a ed.)

Williams, Paul D., y Matt McDonald. Security Studies: An Introduction. 3th ed. London ; New York: Routledge, Taylor & Francis Group, 2018.

Cita MLA (9a ed.)

Williams, Paul D., y Matt McDonald. Security Studies: An Introduction. 3th ed. Routledge, Taylor & Francis Group, 2018.