APA (7th ed.) Citation

Holden, H. M. (2006). To be a U.S. Secret Service agent. Zenith Press.

Chicago Style (17th ed.) Citation

Holden, Henry M. To Be a U.S. Secret Service Agent. St. Paul, Minn: Zenith Press, 2006.

MLA (9th ed.) Citation

Holden, Henry M. To Be a U.S. Secret Service Agent. Zenith Press, 2006.

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