Columbia subject headings:
Harvard subject headings:
America--Relations--Spain.
Education--Spain--History--20th century
Educational exchanges--America--History--20th century.
Educational exchanges--Spain--History--20th century.
Learning and scholarship--History--20th century.
Spain--Relations--America.
Spain. Junta para Ampliación de Estudios e Investigaciones Científicas.
Princeton subject headings:
Spain. Junta para Ampliación de Estudios e Investigaciones Científicas