Columbia subject headings:
Architectural drawing--Italy--Bologna--History--18th century.
Bibiena, Ferdinando Galli, 1657-1743--Influence.
Bologna (Italy)--Buildings, structures, etc.
Gates--Italy--Bologna--History--18th century--Designs and plans.
Harvard subject headings:
Architectural drawing--Italy--Bologna--History--18th century.
Bibiena, Ferdinando Galli, 1657-1743--Influence.
Bologna (Italy)--Buildings, structures, etc.
Gates--Italy--Bologna--History--18th century--Designs and plans.
Princeton subject headings:
Architectural drawing--Italy--Bologna--History--18th century.
Bibiena, Ferdinando Galli, 1657-1743--Influence.
Bologna (Italy)--Buildings, structures, etc.
Gates--Italy--Bologna--History--18th century--Designs and plans.