"Superkrot" T︠S︡RU v KGB : 35 let shpionazha generala Olega Kalugina : versii︠a︡ razvedchika /
Sokolov, Aleksandr.
Moskva : Alʹmanakh "Vympel",
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Includes bibliographical references (p. 335-336) and index.
Kalugin, Oleg, 1934-
Soviet Union. Komitet gosudarstvennoĭ bezopasnosti.
Espionage, Soviet.
Spies