Bamford, R. (2015). Nietzsche's free spirit philosophy. Rowman & Littlefield International.
Cita Chicago (17th ed.)Bamford, Rebecca. Nietzsche's Free Spirit Philosophy. London: Rowman & Littlefield International, 2015.
Cita MLA (9th ed.)Bamford, Rebecca. Nietzsche's Free Spirit Philosophy. Rowman & Littlefield International, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.