APA (7th ed.) Citation

Hardy, G. H., & Littlewood, J. E. (1967). Inequalities. Cambridge University Press.

Chicago Style (17th ed.) Citation

Hardy, G. H., and John E. Littlewood. Inequalities. Cambridge: Cambridge University Press, 1967.

MLA (8th ed.) Citation

Hardy, G. H., and John E. Littlewood. Inequalities. Cambridge University Press, 1967.