Columbia subject headings:
Aeronautics, Commercial--Deregulation--Case studies.
Aeronautics, Commercial--Deregulation.
Airlines--Deregulation--Case studies.
Airlines--Deregulation.
Harvard subject headings:
Aeronautics, Commercial--Deregulation--Case studies.
Airlines--Deregulation--Case studies.
Princeton subject headings:
Aeronautics, Commercial--Deregulation--Case studies.
Airlines--Deregulation--Case studies.
Case studies.