APA Edition Citation

Hardy, G. H., & M, W. E. (1971). Introduction to the theory of numbers (4th ed.). Oxford University.

Chicago Edition Citation

Hardy, G H., and Wright E. M. Introduction to the Theory of Numbers. 4th ed. London: Oxford University, 1971.

MLA Edition Citation

Hardy, G H., and Wright E. M. Introduction to the Theory of Numbers. 4th ed. Oxford University, 1971.