APA (7th ed.) Citation

Derbyshire, J. (2006). Unknown quantity: A real and imaginary history of algebra. Joseph Henry Press.

Chicago Style (17th ed.) Citation

Derbyshire, John. Unknown Quantity: A Real and Imaginary History of Algebra. Washington, D.C.: Joseph Henry Press, 2006.

MLA (8th ed.) Citation

Derbyshire, John. Unknown Quantity: A Real and Imaginary History of Algebra. Joseph Henry Press, 2006.