Columbia subject headings:
Harvard subject headings:
Dictatorship
Dictatorship--History--20th century--Case studies.
History, Modern--20th century
Military government--History--20th century--Case studies.
One-party systems--History--20th century--Case studies.
Totalitarianism--History--20th century--Case studies.
Princeton subject headings:
Dictatorship.
History, Modern--20th century.