Richelson, J. (1986). Sword and shield: The Soviet intelligence and security apparatus. Ballinger.
Lua i Stíl Chicago (17ú heag.)Richelson, Jeffrey. Sword and Shield: The Soviet Intelligence and Security Apparatus. Cambridge, Mass: Ballinger, 1986.
Lua MLA (9ú heag.)Richelson, Jeffrey. Sword and Shield: The Soviet Intelligence and Security Apparatus. Ballinger, 1986.
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