APA (7th ed.) Citation

Cummings, K. W. (2018). Partner to power: The secret world of presidents and their most trusted advisers. Prometheus Books.

Chicago Style (17th ed.) Citation

Cummings, K. Ward. Partner to Power: The Secret World of Presidents and Their Most Trusted Advisers. Amherst, New York: Prometheus Books, 2018.

MLA (9th ed.) Citation

Cummings, K. Ward. Partner to Power: The Secret World of Presidents and Their Most Trusted Advisers. Prometheus Books, 2018.