Columbia subject headings:
Centro internazionale congressi (Florence, Italy)
Florence (Italy)--Buildings, structures, etc.
Historic buildings--Remodeling for other use--Italy--Florence.
Spadolini, Pierluigi.
Harvard subject headings:
Florence (Italy)--Buildings, structures, etc.
Historic buildings--Remodeling for other use--Italy--Florence.
Palaces--Italy--Florence.
Palazzo dei congressi (Florence, Italy)
Spadolini, Pierluigi.
Princeton subject headings:
Florence (Italy)--Buildings, structures, etc.
Palazzo dei congressi di Firenze.