APA引文

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

Chicago Edition Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.