MacDonnell, F. (1995). Insidious foes: The Axis Fifth Column and the American home front. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)MacDonnell, Francis. Insidious Foes: The Axis Fifth Column and the American Home Front. New York: Oxford University Press, 1995.
Lua MLA (9ú heag.)MacDonnell, Francis. Insidious Foes: The Axis Fifth Column and the American Home Front. Oxford University Press, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.