Columbia subject headings:
Architectural drawing--Italy--Emilia-Romagna--18th century.
Emilia-Romagna (Italy)--Buildings, structures, etc.--Designs and plans.
Percier, Charles, 1764-1838.
Harvard subject headings:
Architectural drawing--Italy--Emilia-Romagna--18th century.
Emilia-Romagna (Italy)--Buildings, structures, etc.--Designs and plans.
Percier, Charles, 1764-1838
Princeton subject headings:
Architectural drawing--Italy--Emilia-Romagna--18th century.
Emilia-Romagna (Italy)--Buildings, structures, etc.--Designs and plans.
Percier, Charles, 1764-1838.