Columbia subject headings:
Harvard subject headings:
Houdan (France)--History--Pictorial works.
Houdan (France)--Social life and customs--Pictorial works.
Postcards--France--Houdan.
Princeton subject headings:
Houdan (France : Canton)--History, Local--Pictorial works.
Houdan (France : Canton)--Social life and customs--Pictorial works.
Postcards--France--Houdan (Canton).