APA (7th ed.) Citation

Ogilvy, C. S. (1962). Tomorrow's math: Unsolved problems for the amateur. Oxford University Press.

Chicago Style (17th ed.) Citation

Ogilvy, C. Stanley. Tomorrow's Math: Unsolved Problems for the Amateur. New York: Oxford University Press, 1962.

MLA (9th ed.) Citation

Ogilvy, C. Stanley. Tomorrow's Math: Unsolved Problems for the Amateur. Oxford University Press, 1962.