Columbia subject headings:
Student movements--Brazil--History.
União Nacional dos Estudantes (Brazil)--History.
Harvard subject headings:
College students--Political activity--Brazil--History--20th century.
Student movements--Brazil--History--20th century.
União Nacional dos Estudantes (Brazil)--History.
Princeton subject headings:
College students--Brazil--Political activity--History--20th century.
Student movements--Brazil--History--20th century.
União Nacional dos Estudantes (Brazil)--History.