Columbia subject headings:
Recycling (Waste, etc.)--Mexico--Mexico City.
Refuse and refuse disposal--Economic aspects--Mexico--Mexico City.
Refuse collection--Mexico--Mexico City.
Refuse collectors--Mexico--Mexico City.
Harvard subject headings:
Recycling (Waste, etc.)--Mexico--Mexico City.
Refuse and refuse disposal--Economic aspects--Mexico--Mexico City.
Refuse collection--Mexico--Mexico City.
Refuse collectors--Mexico--Mexico City.
Princeton subject headings:
Recycling (Waste, etc.)--Mexico--Mexico City.
Refuse and refuse disposal--Economic aspects--Mexico--Mexico City.
Refuse collection--Mexico--Mexico City.
Refuse collectors--Mexico--Mexico City.