Columbia subject headings:
Harvard subject headings:
Labor movement--Portugal--History--20th century.
Portugal--History--20th century
Sindicato do Serviço Doméstico--History.
Women household employees--Labor unions--Portugal--History--20th century.
Women household employees--Political activity--Portugal--History--20th century.
Women--Portugal--Social conditions--20th century.
Princeton subject headings:
Labor movement--Portugal--History--20th century.
Portugal--History--20th century.
Sindicato do Serviço Doméstico--History.
Women household employees--Labor unions--Portugal--History--20th century.
Women household employees--Political activity--Portugal--History--20th century.
Women--Portugal--Social conditions--20th century.