Columbia subject headings:
College students--Political activity--Mexico--Sonora (State)--History--20th century.
Social movements--Mexico--Sonora (State)--History--20th century.
Student movements--Mexico--Sonora (State)--History--20th century.
Harvard subject headings:
Student movements--Mexico--Sonora (State)--History--20th century.
Princeton subject headings:
Student movements--Mexico--Sonora (State)--History--20th century.