APA (7th ed.) Citation

Youngblood, R. W. (1973). 20 years in the Secret Service: My life with five Presidents. Simon and Schuster.

Chicago Style (17th ed.) Citation

Youngblood, Rufus W. 20 Years in the Secret Service: My Life with Five Presidents. New York: Simon and Schuster, 1973.

MLA (9th ed.) Citation

Youngblood, Rufus W. 20 Years in the Secret Service: My Life with Five Presidents. Simon and Schuster, 1973.