APA (7th ed.) Citation

Helm, W. P. (1947). Harry Truman, a political biography ([1st ed.].). Duell, Sloan and Pearce.

Chicago Style (17th ed.) Citation

Helm, William P. Harry Truman, a Political Biography. [1st ed.]. New York: Duell, Sloan and Pearce, 1947.

MLA (9th ed.) Citation

Helm, William P. Harry Truman, a Political Biography. [1st ed.]. Duell, Sloan and Pearce, 1947.