Columbia subject headings:
Architectural drawing--Great Britain--20th century.
Architecture, Modern--20th century.
Harvard subject headings:
Architectural drawing--20th century--Great Britain.
Architectural drawing--Great Britain--20th century.
Architecture, Modern--20th century--Great Britain.
Architecture, Modern--21st century
Princeton subject headings:
Architectural drawing--20th century--Great Britain.
Architecture, Modern--20th century.