Columbia subject headings:
Spain--History--Civil War, 1936-1939--Participation, Foreign.
Spain. Ejército Popular de la República. Brigada Internacional.
Harvard subject headings:
Press--Spain--History--20th century.
Spain--History--Civil War, 1936-1939--Journalism, Military.
Spain--History--Civil War, 1936-1939--Participation, Foreign.
Princeton subject headings:
Spain--History--Civil War, 1936-1939--Participation, Foreign.
Spain. Ejército Popular de la República. Brigada Internacional