Columbia subject headings:
Art--Vatican City--Catalogs.
Dogs in art--Catalogs.
Human-animal relationships in art--Catalogs.
Harvard subject headings:
Art--Vatican City--Catalogs.
Dogs in art--Catalogs.
Human-animal relationships in art--Catalogs.
Princeton subject headings:
Art--Vatican City--Catalogs.
Catalogs.
Dogs in art--Catalogs.
Human-animal relationships in art--Catalogs.