APA (7th ed.) Citation

Hardy, G. H. (1992). A mathematician's apology. Cambridge University Press.

Chicago Style (17th ed.) Citation

Hardy, Godfrey Harold. A Mathematician's Apology. Cambridge: Cambridge University Press, 1992.

MLA (9th ed.) Citation

Hardy, Godfrey Harold. A Mathematician's Apology. Cambridge University Press, 1992.