Columbia subject headings:
Harvard subject headings:
Nietzsche, Friedrich Wilhelm, 1844-1900--Photograph collections.
Nietzsche, Friedrich Wilhelm, 1844-1900--Pictorial works.
Nietzsche, Friedrich Wilhelm, 1844-1900--Portraits--Catalogs.
Nietzsche, Friedrich Wilhelm, 1844-1900--Portraits.
Photographers--Germany.
Portrait photography--Germany.
Princeton subject headings:
Nietzsche, Friedrich Wilhelm, 1844-1900--Portraits.
Portrait photography--Germany.
Portraits.