Cita APA (7a ed.)

Havil, J. (2005). GAMMA: EXploring Euler`s Constant (1st.). ICFAI University Press.

Cita Chicago Style (17a ed.)

Havil, Julian. GAMMA: EXploring Euler`s Constant. 1st. Hyderabad: ICFAI University Press, 2005.

Cita MLA (9a ed.)

Havil, Julian. GAMMA: EXploring Euler`s Constant. 1st. ICFAI University Press, 2005.