Columbia subject headings:
Harvard subject headings:
Coggin, Janet, 1936-
Espionage, Soviet--South Africa.
Gerhardt, Dieter.
Intelligence officers' spouses--Biography.
Spies--South Africa--Biography.
Union of Soviet Socialist Republics. Komitet gosudarstvennoı̆ bezopasnosti.
Princeton subject headings:
Coggin, Janet, 1936-
Espionage, Soviet--South Africa.
Gerhardt, Dieter.
Intelligence officers' spouses--Biography.
Soviet Union. Komitet gosudarstvennoĭ bezopasnosti
Spies--South Africa--Biography.