Columbia subject headings:
Architectural drawing, Renaissance--Italy.
Architectural drawing--Italy--15th century.
Perspective--Early works to 1800.
Harvard subject headings:
Architectural drawing, Renaissance--Italy.
Architectural drawing--Italy--15th century.
Perspective--Early works to 1800
Princeton subject headings:
Architectural drawing, Renaissance--Italy.
Architectural drawing--Italy--15th century.
Perspective--Early works to 1800.