Columbia subject headings:
Kalugin, Oleg, 1934-
Harvard subject headings:
Kalugin, Oleg, 1934-
Politicians--Soviet Union--Biography
Soviet Union--Politics and government--1985-1991.
Soviet Union. Komitet gosudarstvennoĭ bezopasnosti--Officials and employees--Biography.
Princeton subject headings:
Kalugin, Oleg, 1934-
Soviet Union. Komitet gosudarstvennoĭ bezopasnosti--Officials and employees--Biography.
Spies--Soviet Union--Biography.