APA (7th ed.) Citation

Heffington, S., Oler, A., & Tretler, D. (2019). A national security strategy primer. National Defense University Press.

Chicago Style (17th ed.) Citation

Heffington, Steven, Adam Oler, and David Tretler. A National Security Strategy Primer. Washington, D.C.: National Defense University Press, 2019.

MLA (9th ed.) Citation

Heffington, Steven, et al. A National Security Strategy Primer. National Defense University Press, 2019.