Columbia subject headings:
Nietzsche, Friedrich Wilhelm, 1844-1900--Notebooks, sketchbooks, etc.
Harvard subject headings:
Nietzsche, Friedrich Wilhelm, 1844-1900--Notebooks, sketchbooks, etc.
Princeton subject headings:
Nietzsche, Friedrich Wilhelm, 1844-1900--Notebooks, sketchbooks, etc.
Philosophy, German--19th century.