APA (7th ed.) Citation

Ore, O. (1988). Number theory and its history. Dover.

Chicago Style (17th ed.) Citation

Ore, Oystein. Number Theory and Its History. New York: Dover, 1988.

MLA (9th ed.) Citation

Ore, Oystein. Number Theory and Its History. Dover, 1988.

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