Columbia subject headings:
Families--Italy--Naples--Case studies.
Naples (Italy)--Social conditions--Case studies.
Poor--Italy--Naples--Case studies.
Harvard subject headings:
Families--Italy--Naples--Case studies.
Naples (Italy)--Social conditions--Case studies.
Poor--Italy--Naples--Case studies.
Princeton subject headings:
Families--Italy--Naples--Case studies.
Naples (Italy)--Social conditions--Case studies.
Poor--Italy--Naples--Case studies.