Cita APA (7th ed.)

Niven, I. M., & Zuckerman, H. S. (1980). An introduction to the theory of numbers (4th ed.). John Wiley.

Cita Chicago (17th ed.)

Niven, Ivan Morton, i Herbert S. Zuckerman. An Introduction to the Theory of Numbers. 4th ed. New York: John Wiley, 1980.

Cita MLA (9th ed.)

Niven, Ivan Morton, i Herbert S. Zuckerman. An Introduction to the Theory of Numbers. 4th ed. John Wiley, 1980.