Columbia subject headings:
Architects--Italy--Tuscany--Biography.
Engineers--Italy--Tuscany--Biography.
Tuscany (Italy)--Biography.
Harvard subject headings:
Architects--Italy--Tuscany--Biography.
Engineers--Italy--Tuscany--Biography.
Tuscany (Italy)--Biography.
Princeton subject headings:
Architects--Italy--Tuscany--Biography.
Engineers--Italy--Tuscany--Biography.
Tuscany (Italy)--Biography.