Columbia subject headings:
Church work with the poor--Philippines--Smokey Mountain.
Poor--Philippines--Smokey Mountain.
Smokey Mountain (Philippines)
Waste disposal sites--Environmental aspects--Philippines.
Waste disposal sites--Philippines--Smokey Mountain.
Harvard subject headings:
Church work with the poor--Philippines--Manila.
Poor--Philippines--Manila.
Ragpickers--Philippines--Manila.
Princeton subject headings: