Columbia subject headings:
Civil-military relations--Spain--History--20th century.
Sociology, Military--Spain--History--20th century.
Spain--History--Republic, 1931-1939.
Harvard subject headings:
Civil-military relations--Spain--History--20th century.
Sociology, Military--Spain--History--20th century.
Spain--History--Republic, 1931-1939.
Princeton subject headings:
Civil-military relations--Spain--History--20th century.
Sociology, Military--Spain--History--20th century.
Spain--History--Republic, 1931-1939.