Niven, I., Zuckerman, H. S., & Montgomery, H. L. (1991). An Introduction to the Theory of Numbers (5th ed.). John Wiley & Sons.
Citazione stile Chigago Style (17a edizione)Niven, Ivan, Herbert S. Zuckerman, e Hugh L. Montgomery. An Introduction to the Theory of Numbers. 5th ed. New York: John Wiley & Sons, 1991.
Citatione MLA (9a ed.)Niven, Ivan, et al. An Introduction to the Theory of Numbers. 5th ed. John Wiley & Sons, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.