Havil, J. (2003). Gamma: Exploring Euler's constant. Princeton University Press.
Dyfyniad Arddull ChicagoHavil, Julian. Gamma: Exploring Euler's Constant. Princeton: Princeton University Press, 2003.
Dyfyniad MLAHavil, Julian. Gamma: Exploring Euler's Constant. Princeton University Press, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.