APA (7th ed.) Citation

Ore, O. (1974). Niels Henrik Abel, mathematician extraordinary. Chelsea Publ. Co.

Chicago Style (17th ed.) Citation

Ore, Oystein. Niels Henrik Abel, Mathematician Extraordinary. New York, N.Y: Chelsea Publ. Co, 1974.

MLA (9th ed.) Citation

Ore, Oystein. Niels Henrik Abel, Mathematician Extraordinary. Chelsea Publ. Co, 1974.