Columbia subject headings:
Drawing, Italian--17th century--Exhibitions.
Drawing, Italian--Exhibitions.
Guercino, 1591-1666--Exhibitions.
Harvard subject headings:
Drawing, Italian--Exhibitions
Drawing--17th century--Italy--Exhibitions.
Exhibition catalogs
Guercino, 1591-1666--Exhibitions.
Princeton subject headings:
Guercino, 1591-1666.