Columbia subject headings:
College students--Political activity--Mexico--History--20th century.
Paz, Octavio, 1914-1998--Correspondence.
Student movements--Mexico--History--20th century.
Harvard subject headings:
College students--Political activity--Mexico--History--20th century.
Paz, Octavio, 1914-1998--Correspondence.
Student movements--Mexico--History--20th century
Princeton subject headings: