Columbia subject headings:
Harvard subject headings:
Censorship--Portugal--History--20th century.
Translating and interpreting--Political aspects--Portugal--History--20th century.
Translating and interpreting--Portugal--History--20th century.
Princeton subject headings:
Censorship--Portugal--History--20th century.
Translating and interpreting--Political aspects--Portugal--History--20th century.
Translating and interpreting--Portugal--History--20th century.