APA (7th ed.) Citation

Callaghan, J., O'Connor, B., & Phythian, M. (2019). Ideologies of American foreign policy. Routledge.

Chicago Style (17th ed.) Citation

Callaghan, John, Brendon O'Connor, and Mark Phythian. Ideologies of American Foreign Policy. London ; New York: Routledge, 2019.

MLA (9th ed.) Citation

Callaghan, John, et al. Ideologies of American Foreign Policy. Routledge, 2019.