APA (7th ed.) Citation

Esper, M. T. (2022). A sacred oath: Memoirs of a secretary of defense during extraordinary times.

Chicago Style (17th ed.) Citation

Esper, Mark T. A Sacred Oath: Memoirs of a Secretary of Defense During Extraordinary Times. 2022.

MLA (8th ed.) Citation

Esper, Mark T. A Sacred Oath: Memoirs of a Secretary of Defense During Extraordinary Times. 2022.

Warning: These citations may not always be 100% accurate.