Columbia subject headings:
History--Philosophy--History--19th century.
Nietzsche, Friedrich Wilhelm, 1844-1900.
Ontology--History--19th century.
Harvard subject headings:
History--Philosophy--History--19th century
Nietzsche, Friedrich Wilhelm, 1844-1900
Ontology--History--19th century.
Princeton subject headings:
History--Philosophy--History--19th century.
Nietzsche, Friedrich Wilhelm, 1844-1900.
Ontology--History--19th century.