Niven, I. (1991). Introduction to the theory of numbers (5thed.). Wiley.
Citazione stile Chigago Style (17a edizione)Niven, Ivan. Introduction to the Theory of Numbers. 5thed. New York: Wiley, 1991.
Citatione MLA (9a ed.)Niven, Ivan. Introduction to the Theory of Numbers. 5thed. Wiley, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.