Columbia subject headings:
Harvard subject headings:
Greenbelts--Mexico--Guadalajara Metropolitan Area.
Trees in cities--Mexico--Guadalajara Metropolitan Area.
Urban beautification--Mexico--Guadalajara Metropolitan Area.
Urban ecology (Sociology)--Mexico--Guadalajara Metropolitan Area.
Princeton subject headings:
Greenbelts--Mexico--Guadalajara Metropolitan Area.
Trees in cities--Mexico--Guadalajara Metropolitan Area.
Urban beautification--Mexico--Guadalajara Metropolitan Area.
Urban ecology (Sociology)--Mexico--Guadalajara Metropolitan Area.