APA (7th ed.) Citation

Nicastro, N. (2008). Circumference: Eratosthenes and the ancient quest to measure the globe. St. Martin's Press.

Chicago Style (17th ed.) Citation

Nicastro, Nicholas. Circumference: Eratosthenes and the Ancient Quest to Measure the Globe. New York: St. Martin's Press, 2008.

MLA (9th ed.) Citation

Nicastro, Nicholas. Circumference: Eratosthenes and the Ancient Quest to Measure the Globe. St. Martin's Press, 2008.

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