APA (7th ed.) Citation

Nietzsche, F., Fuss, P., & Shapiro, H. (1971). Nietzsche, a self-portrait his letters. Harvard University Press.

Chicago Style (17th ed.) Citation

Nietzsche, Friedrich, Peter Fuss, and Henry Shapiro. Nietzsche, a Self-portrait His Letters. Cambridge [Mass.]: Harvard University Press, 1971.

MLA (9th ed.) Citation

Nietzsche, Friedrich, et al. Nietzsche, a Self-portrait His Letters. Harvard University Press, 1971.