“Preface.” "e": The Story of a Number, by Eli Maor, Princeton University Press, PRINCETON; OXFORD, 1994, pp. xi-2, www.jstor.org/stable/j.ctt7t8q5.3. Accessed 22 Jan. 2021.
Maor, E. (1994). Preface. In "e": The Story of a Number (pp. Xi-2). PRINCETON; OXFORD: Princeton University Press. Retrieved January 22, 2021, from http://www.jstor.org/stable/j.ctt7t8q5.3
Maor, Eli. "Preface." In "e": The Story of a Number, Xi-2. PRINCETON; OXFORD: Princeton University Press, 1994. Accessed January 22, 2021. http://www.jstor.org/stable/j.ctt7t8q5.3.
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