Columbia subject headings:
Harvard subject headings:
Education--Portugal--History--20th century.
Junta de Educação Nacional (Portugal)--History.
Portugal--Civilization--20th century.
Science and state--Portugal--History--20th century.
Science--Study and teaching--Portugal--History--20th century.
Princeton subject headings:
Education--Portugal--History--20th century.
Junta de Educação Nacional (Portugal)--History.
Portugal--Civilization--20th century.
Science and state--Portugal--History--20th century.
Science--Study and teaching--Portugal--History--20th century.