Columbia subject headings:
City planning--Maryland--Columbia.
City planning--United States--Case studies.
New towns--Maryland--Columbia.
Harvard subject headings:
City planning--Maryland--Columbia.
City planning--United States--Case studies
Columbia (Md.)--City planning--Case studies.
New towns--Maryland--Columbia.
Princeton subject headings:
Case studies.
City planning--Maryland--Columbia.
City planning--United States--Case studies.
New towns--Maryland--Columbia.