APA (7th ed.) Citation

Ore, O. (1967). Invitation to number theory (4. print.). Math. Assoc. of America.

Chicago Style (17th ed.) Citation

Ore, Oystein. Invitation to Number Theory. 4. print. Washington, DC: Math. Assoc. of America, 1967.

MLA (9th ed.) Citation

Ore, Oystein. Invitation to Number Theory. 4. print. Math. Assoc. of America, 1967.

Warning: These citations may not always be 100% accurate.