Columbia subject headings:
Architecture--Iran--History.
City planning--Iran--History.
Emptiness (Philosophy)
Space (Architecture)--Iran.
Harvard subject headings:
Architecture--Iran--History.
City planning--Iran--History.
Emptiness (Philosophy)
Space (Architecture)--Iran.
Princeton subject headings:
Architecture--Iran--History.
City planning--Iran--History.
Emptiness (Philosophy)
Space (Architecture)--Iran.