Columbia subject headings:
Harvard subject headings:
7e Arrondissement (Paris, France)--Pictorial works.
Paris (France)--Buildings, structures, etc.
Paris (France)--Pictorial works.
Postcards--France--Paris.
Princeton subject headings:
7e Arrondissement (Paris, France)--Pictorial works.
Paris (France)--Buildings, structures, etc.
Paris (France)--Pictorial works.
Postcards--France--Paris.