Helms, C., & Black, C. M. (2013). An intriguing life: A memoir of war, Washington, and marriage to an American spymaster. Rowman & Littlefield Publishers.
Chicago-referens (17:e uppl.)Helms, Cynthia, och Christine M. Black. An Intriguing Life: A Memoir of War, Washington, and Marriage to an American Spymaster. Lanham: Rowman & Littlefield Publishers, 2013.
MLA-referens (9:e uppl.)Helms, Cynthia, och Christine M. Black. An Intriguing Life: A Memoir of War, Washington, and Marriage to an American Spymaster. Rowman & Littlefield Publishers, 2013.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.