Columbia subject headings:
Citizenship--Mexico--Mexico City.
City dwellers--Civil rights--Mexico--Mexico City.
Sociology, Urban--Mexico--Mexico City.
Harvard subject headings:
Citizenship--Mexico--Mexico City.
City dwellers--Civil rights--Mexico--Mexico City.
Sociology, Urban--Mexico--Mexico City.
Princeton subject headings:
Citizenship--Mexico--Mexico City.
City dwellers--Civil rights--Mexico--Mexico City.
Sociology, Urban--Mexico--Mexico City.