APA (7th ed.) Citation

Harris, S. L. (2006). Duffy's war: Fr. Francis Duffy, Wild Bill Donovan, and the Irish fighting 69th in World War I. Potomac Books.

Chicago Style (17th ed.) Citation

Harris, Stephen L. Duffy's War: Fr. Francis Duffy, Wild Bill Donovan, and the Irish Fighting 69th in World War I. Washington, D.C.: Potomac Books, 2006.

MLA (8th ed.) Citation

Harris, Stephen L. Duffy's War: Fr. Francis Duffy, Wild Bill Donovan, and the Irish Fighting 69th in World War I. Potomac Books, 2006.