Columbia subject headings:
Avenida da Liberdade (Lisbon, Portugal)
Champs-Elysées (Paris, France)
Regent Street (London, England)
Streets--Case studies.
Harvard subject headings:
Avenida da Liberdade (Lisbon, Portugal)
Champs-Elysées (Paris, France)
Regent Street (London, England)
Streets--Case studies.
Princeton subject headings:
Avenida da Liberdade (Lisbon, Portugal)
Case studies.
Champs-Elysées (Paris, France)
Regent Street (London, England)
Streets--Case studies.