Columbia subject headings:
Harvard subject headings:
Business enterprises--Corrupt practices--Italy--Sicily--Case studies.
Mafia--Economic aspects--Italy--Sicily--Case studies.
Public health--Corrupt practices--Italy--Sicily--Case studies.
Solar energy industries--Corrupt practices--Italy--Sicily--Case studies.
Princeton subject headings:
Business enterprises--Corrupt practices--Italy--Sicily--Case studies.
Case studies.
Mafia--Economic aspects--Italy--Sicily--Case studies.
Public health--Corrupt practices--Italy--Sicily--Case studies.
Solar energy industries--Corrupt practices--Italy--Sicily--Case studies.