Columbia subject headings:
Brandel, Konrad, 1838-1920.
Photography--Poland--Warsaw--History.
Warsaw (Poland)--History--Pictorial works.
Harvard subject headings:
Brandel, Konrad, 1838-1920.
Photography--Poland--Warsaw--History.
Warsaw (Poland)--History--Pictorial works.
Princeton subject headings:
Brandel, Konrad, 1838-1920.
Photography--Poland--Warsaw--History.
Warsaw (Poland)--History--Pictorial works.