Columbia subject headings:
Piacenza (Italy)--In art--Catalogs.
Prints, Italian--Themes, motives--Catalogs.
Harvard subject headings:
Piacenza (Italy)--In art--Catalogs.
Prints, Italian--Themes, motives--Catalogs.
Princeton subject headings:
Catalogs.
Piacenza (Italy)--In art--Catalogs.
Prints, Italian--Themes, motives--Catalogs.