Koch, S. (1994). Double lives: Spies and writers in the secret Soviet war of ideas against the west. Maxwell.
Lua i Stíl Chicago (17ú heag.)Koch, Stephen. Double Lives: Spies and Writers in the Secret Soviet War of Ideas Against the West. New York [u.a.]: Maxwell, 1994.
Lua MLA (8ú heag.)Koch, Stephen. Double Lives: Spies and Writers in the Secret Soviet War of Ideas Against the West. Maxwell, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.