Columbia subject headings:
Architecture, Domestic--Italy--Bologna.
Harvard subject headings:
Architectural drawing--16th century--Italy--Bologna.
Architecture--Italy--Bologna--Early works to 1800.
Bologna (Italy)--Buildings, structures, etc.
Danti, Ignazio, 1536-1586 Disegni di alcuni castelli delbolognese.
Danti, Ignazio, 1536-1586--Notebooks, sketchbooks, etc.
Drawing, Italian--Italy--Bologna.
Drawing--16th century--Italy--Bologna.
Princeton subject headings:
Architecture, Domestic--Italy--Bologna.