APA način citiranja

Havil, J. (2003). Gamma: Exploring Euler's constant. Princeton University Press.

Čikaški stil citiranja

Havil, Julian. Gamma: Exploring Euler's Constant. Princeton: Princeton University Press, 2003.

MLA način citiranja

Havil, Julian. Gamma: Exploring Euler's Constant. Princeton University Press, 2003.