Columbia subject headings:
Harvard subject headings:
Capitals (Cities)
Constitutional law--Mexico--Distrito Federal
Constitutional law--Mexico--Mexico City.
Distrito Federal (Mexico)
Distrito Federal (Mexico)--Politics and government.
Mexico City (Mexico)
Mexico City (Mexico)--Politics and government.
Mexico--Capital and capitol.
Princeton subject headings:
Capitals (Cities)
Constitutional law--Mexico--Distrito Federal.
Constitutional law--Mexico--Mexico City.
Distrito Federal (Mexico)--Politics and government.
Mexico City (Mexico)--Politics and government.
Mexico--Capital and capitol.