APA (7th ed.) Citation

Niven, I. (1991). Introduction to the theory of numbers (5thed.). Wiley.

Chicago Style (17th ed.) Citation

Niven, Ivan. Introduction to the Theory of Numbers. 5thed. New York: Wiley, 1991.

MLA (9th ed.) Citation

Niven, Ivan. Introduction to the Theory of Numbers. 5thed. Wiley, 1991.