APA (7th ed.) Citation

D'Agnese, J., & O'Brien, J. (2010). Blockhead: The life of Fibonacci. Henry Holt.

Chicago Style (17th ed.) Citation

D'Agnese, Joseph, and John O'Brien. Blockhead: The Life of Fibonacci. New York: Henry Holt, 2010.

MLA (8th ed.) Citation

D'Agnese, Joseph, and John O'Brien. Blockhead: The Life of Fibonacci. Henry Holt, 2010.

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