Columbia subject headings:
Harvard subject headings:
Diplomatic and consular service, American--Germany (East)--History.
Germany (East)--Biography.
Germany (East). Ministerium für Staatssicherheit.
Hesse, Horst, 1922-2006.
Informers--Germany (East)--Biography.
Intelligence service--Germany (East)--History.
Police--Germany (East)--Biography.
Secret service--Germany (East)--History
United States. Central Intelligence Agency
United States. War Department. Military Intelligence Division
Princeton subject headings:
Diplomatic and consular service, American--Germany (East)--History.
Germany (East)--Biography.
Germany (East). Ministerium für Staatssicherheit
Hesse, Horst, 1922-2006.
Informers--Germany (East)--Biography.
Intelligence service--Germany (East)--History.
Police--Germany (East)--Biography.
Secret service--Germany (East)--History.
United States. Central Intelligence Agency
United States. War Department. Military Intelligence Division