APA (7th ed.) Zitazioa

Nagell, T. (1951). Introduction to number theory. John Wiley.

Chicago Style (17th ed.) Zitazioa

Nagell, Trygve. Introduction to Number Theory. Nueva York: John Wiley, 1951.

MLA (9th ed.) Zitazioa

Nagell, Trygve. Introduction to Number Theory. John Wiley, 1951.