Columbia subject headings:
Cardona Quirós, Edgar, 1916-
Costa Rica--History--1948-1986.
Harvard subject headings:
Cardona Quirós, Edgar, 1916-
Costa Rica--History--1948-1986.
Princeton subject headings:
Cardona Quirós, Edgar, 1916-
Costa Rica--History--1948-1986.
Revolutionaries--Costa Rica.