Nietzsche, F. (1969). Selected letters of Friedrich Nietzsche. University of Chicago.
Cita Chicago (17th ed.)Nietzsche, Friedrich. Selected Letters of Friedrich Nietzsche. Chicago: University of Chicago, 1969.
Cita MLA (9th ed.)Nietzsche, Friedrich. Selected Letters of Friedrich Nietzsche. University of Chicago, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.