Columbia subject headings:
Architectural design--Study and teaching (Higher)--Spain--Madrid.
Design--Study and teaching (Higher)--Spain--Madrid.
Harvard subject headings:
Architectural design--Study and teaching--Spain--Madrid.
Design--Study and teaching--Spain--Madrid.
Trees in cities
Princeton subject headings:
Architectural design--Study and teaching (Higher)--Spain--Madrid.
Design--Study and teaching (Higher)--Spain--Madrid.