Columbia subject headings:
Central America--Population--Case studies.
Central America--Social conditions--Case studies.
Poor--Central America--Case studies.
Harvard subject headings:
Central America--Population--Case studies.
Central America--Social conditions--Case studies.
Central America--Social conditions--Pictorial works.
El Salvador--Population--Case studies.
El Salvador--Social conditions--Case studies.
Honduras--Population--Case studies.
Honduras--Social conditions--Case studies.
Poor--Central America--Case studies.
Poor--Central America--Pictorial works.
Poor--El Salvador--Case studies.
Poor--Honduras--Case studies.
Princeton subject headings:
Central America--Population--Case studies.
Central America--Social conditions--Case studies.
Poor--Central America--Case studies.