Columbia subject headings:
Harvard subject headings:
Delgado, Humberto da Silva, 1906-1965
Political campaigns--Portugal--20th century.
Politicians--Portugal--Biography
Portugal--Politics and government--1933-1974.
Revolutionaries--Portugal--Biography.
Princeton subject headings:
Delgado, Humberto da Silva, 1906-1965.
Elections--Portugal.
Portugal--Politics and government--1933-1974.