Columbia subject headings:
Architecture--Research--Europe--20th century.
Architecture--Research--Europe--21st century.
City planning--Research--Europe--History--20th century.
City planning--Research--Europe--History--21st century.
Réseau activités et métiers de l'architecture et de l'urbanisme--History.
Harvard subject headings:
Architecture--Research--Europe--20th century.
Architecture--Research--Europe--21st century.
City planning--Research--Europe--History--20th century.
City planning--Research--Europe--History--21st century.
Réseau activités et métiers de l'architecture et de l'urbanisme--History.
Princeton subject headings:
Architecture--Research--Europe--20th century.
Architecture--Research--Europe--21st century.
City planning--Research--Europe--History--20th century.
City planning--Research--Europe--History--21st century.
Réseau activités et métiers de l'architecture et de l'urbanisme--History.