Columbia subject headings:
Political activists--Latin America--History--20th century.
Political activists--Mexico--History--20th century.
Political refugees--Political activity--Latin America--History--20th century.
Political refugees--Political activity--Mexico--History--20th century.
Press and politics--Latin America--History--20th century.
Press and politics--Mexico--History--20th century.
Right and left (Political science)--Latin America--History--20th century.
Right and left (Political science)--Mexico--History--20th century.
Harvard subject headings:
Latin America--Relations--Latin America.
Mexico--Relations--Latin America.
Political refugees--Mexico--History.
Right and left (Political science)--Latin America.
Princeton subject headings:
Latin America--Relations--Latin America.
Mexico--Relations--Latin America.
Political refugees--Mexico--History.
Right and left (Political science)--Latin America.