Helms, C., & Black, C. M. (2013). An intriguing life: A memoir of war, Washington, and marriage to an American spymaster. Rowman & Littlefield Publishers.
Lua i Stíl Chicago (17ú heag.)Helms, Cynthia, agus Christine M. Black. An Intriguing Life: A Memoir of War, Washington, and Marriage to an American Spymaster. Lanham: Rowman & Littlefield Publishers, 2013.
Lua MLA (9ú heag.)Helms, Cynthia, agus Christine M. Black. An Intriguing Life: A Memoir of War, Washington, and Marriage to an American Spymaster. Rowman & Littlefield Publishers, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.