Columbia subject headings:
Harvard subject headings:
Chile--Foreign relations--1920-1970--Sources.
Chile--Foreign relations--Spain--Sources.
Spain--Foreign relations--1886-1931--Sources.
Spain--Foreign relations--1931-1939--Sources.
Spain--Foreign relations--Chile--Sources.
Princeton subject headings:
Chile--Foreign relations--Spain--Sources.
Chile. Ministerio de Relaciones Exteriores--Archives.
Spain--Foreign relations--Chile--Sources.
Spain--Politics and government--1923-1930--Sources.
Spain--Politics and government--1931-1939--Sources.