“References.” Gamma: Exploring Euler's Constant, by Julian Havil and Freeman Dyson, Princeton University Press, PRINCETON; OXFORD, 2003, pp. 255–258, www.jstor.org/stable/j.ctt7sd75.27. Accessed 14 July 2020.
Havil, J., & Dyson, F. (2003). References. In Gamma: Exploring Euler's Constant (pp. 255-258). PRINCETON; OXFORD: Princeton University Press. Retrieved July 14, 2020, from www.jstor.org/stable/j.ctt7sd75.27
Havil, Julian, and Freeman Dyson. "References." In Gamma: Exploring Euler's Constant, 255-58. PRINCETON; OXFORD: Princeton University Press, 2003. Accessed July 14, 2020. www.jstor.org/stable/j.ctt7sd75.27.
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