Cita APA (7th ed.)

Niven, I. M. (1960). An Introduction to the theory of numbers (3rd ed.). John Wiley and Sons.

Cita Chicago (17th ed.)

Niven, Ivan Morton. An Introduction to the Theory of Numbers. 3rd ed. New York: John Wiley and Sons, 1960.

Cita MLA (9th ed.)

Niven, Ivan Morton. An Introduction to the Theory of Numbers. 3rd ed. John Wiley and Sons, 1960.