Cita APA (7a ed.)

Nietzsche, F. (1995). Zarathustra's discourses. Penguin books.

Cita Chicago Style (17a ed.)

Nietzsche, Friedrich. Zarathustra's Discourses. New York [etc.]: Penguin books, 1995.

Cita MLA (9a ed.)

Nietzsche, Friedrich. Zarathustra's Discourses. Penguin books, 1995.