APA (7th ed.) Citation

Kanigel, R. (1991). The man who knew infinity: A life of the genius ramanujan. Abacus.

Chicago Style (17th ed.) Citation

Kanigel, Robert. The Man Who Knew Infinity: A Life of the Genius Ramanujan. London: Abacus, 1991.

MLA (9th ed.) Citation

Kanigel, Robert. The Man Who Knew Infinity: A Life of the Genius Ramanujan. Abacus, 1991.

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