APA (7th ed.) Citation

Nagel, T. (1987). What does it all mean?: A very short introduction to philosophy. Oxford University Press.

Chicago Style (17th ed.) Citation

Nagel, Thomas. What Does It All Mean?: A Very Short Introduction to Philosophy. New York [etc.]: Oxford University Press, 1987.

MLA (9th ed.) Citation

Nagel, Thomas. What Does It All Mean?: A Very Short Introduction to Philosophy. Oxford University Press, 1987.