Columbia subject headings:
Harvard subject headings:
Civil engineering--Spain--Madrid--History--16th century--Exhibitions.
Civil engineering--Spain--Madrid--History--17th century--Exhibitions.
Engineering--Exhibitions.
Engineering--Manuscripts--Exhibitions.
Leonardo, da Vinci, 1452-1519--Influence--Exhibitions.
Leonardo, da Vinci, 1452-1519--Knowledge and learning--Exhibitions.
Leonardo, da Vinci, 1452-1519--Manuscript--Exhibitions.
Princeton subject headings:
Civil engineering--Spain--Madrid--History--16th century--Exhibitions.
Civil engineering--Spain--Madrid--History--17th century--Exhibitions.
Engineering--Exhibitions.
Engineering--Manuscripts--Exhibitions.
Leonardo, da Vinci, 1452-1519--Influence--Exhibitions.
Leonardo, da Vinci, 1452-1519--Knowledge and learning--Exhibitions.
Leonardo, da Vinci, 1452-1519--Manuscript--Exhibitions.