Columbia subject headings:
City planning--Mexico--Mexico City--Congresses.
Infrastructure (Economics)--Mexico--Mexico City--Congresses.
Mexico City (Mexico)--Cultural policy--Congresses.
Mexico City (Mexico)--Economic policy--Congresses.
Mexico City (Mexico)--Politics and government--Congresses.
Mexico City (Mexico)--Social policy--Congresses.
Harvard subject headings:
Home rule--Mexico--Mexico City--History--20th century--Congresses.
Mexico City (Mexico)--Politics and government--20th century--Congresses.
Princeton subject headings:
Home rule--Mexico--Mexico City--History--20th century--Congresses.
Mexico City (Mexico)--Politics and government--20th century--Congresses.