Columbia subject headings:
Ação Popular (Organization : Brazil)--History.
Juventude Universitária Católica (Brazil)--History.
Harvard subject headings:
Ação Popular (Organization : Brazil)--History.
Juventude Universitária Católica (Brazil)--History.
Princeton subject headings:
Ação Popular (Organization : Brazil)--History.
Juventude Universitária Católica (Brazil)--History.