Columbia subject headings:
City and town life--Economic aspects--North America.
Nightlife--Economic aspects--North America.
Nightlife--North America.
Harvard subject headings:
Nightlife--Economic aspects--North America--Case studies.
Nightlife--Social aspects--North America--Case studies.
Princeton subject headings:
City and town life--Economic aspects--North America.
City and town life--North America.
Nightlife--Economic aspects--North America.
Nightlife--North America.