Columbia subject headings:
Federal government--United States--Case studies.
Regional planning--United States--Case studies.
Regionalism--United States--Case studies.
Harvard subject headings:
Federal government--United States--Case studies.
Regional planning--United States--Case studies.
Regionalism--United States--Case studies.
Princeton subject headings:
Federal government--United States--Case studies.
Regional planning--United States--Case studies.
Regionalism--United States--Case studies.