APA (7th ed.) Citation

Hoover, I. H. (1974). Forty-two years in the White House. Greenwood Press.

Chicago Style (17th ed.) Citation

Hoover, Irwin Hood. Forty-two Years in the White House. Westport, Conn.: Greenwood Press, 1974.

MLA (9th ed.) Citation

Hoover, Irwin Hood. Forty-two Years in the White House. Greenwood Press, 1974.