APA (7th ed.) Citation

Havil, J. (2009). Gamma: Exploring Euler's Constant.

Chicago Style (17th ed.) Citation

Havil, Julian. Gamma: Exploring Euler's Constant. 2009.

MLA (9th ed.) Citation

Havil, Julian. Gamma: Exploring Euler's Constant. 2009.

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