APA (7th ed.) Citation

Nietzsche, F. (1969). Thus spoke Zarathustra: : a book for everyone and no one. Penguin.

Chicago Style (17th ed.) Citation

Nietzsche, Friedrich. Thus Spoke Zarathustra: : A Book for Everyone and No One. Harmondsworth: Penguin, 1969.

MLA (9th ed.) Citation

Nietzsche, Friedrich. Thus Spoke Zarathustra: : A Book for Everyone and No One. Penguin, 1969.