Columbia subject headings:
Harvard subject headings:
Catholic Church--Portugal--History--20th century.
Catholic labor unions--Portugal.
Catholic labor unions.
Centro Académico de Democracia Cristã de Coimbra.
Christian democracy.
Portugal--Politics and government--20th century.
Princeton subject headings:
Centro Académico da Democracia Cristã de Coimbra--History.
Estudos (Coimbra, Portugal)--History.
Estudos sociaes (Coimbra, Portugal)--History.
Imparcial (Coimbra, Portugal)--History.
Partido do Centro Democrático Social--History.
Portugal--Politics and government--20th century.