“Preface.” Trigonometric Delights, by Eli Maor, Princeton University Press, PRINCETON; OXFORD, 1998, pp. xi-2, www.jstor.org/stable/j.ctt1r2f46.4. Accessed 10 Aug. 2020.
Maor, E. (1998). Preface. In Trigonometric Delights (pp. Xi-2). PRINCETON; OXFORD: Princeton University Press. Retrieved August 10, 2020, from www.jstor.org/stable/j.ctt1r2f46.4
Maor, Eli. "Preface." In Trigonometric Delights, Xi-2. PRINCETON; OXFORD: Princeton University Press, 1998. Accessed August 10, 2020. www.jstor.org/stable/j.ctt1r2f46.4.
Export a RIS file (For EndNote, ProCite, Reference Manager, Zotero, Mendeley…)
Export a Text file (For BibTex)
Note: Always review your references and make any necessary corrections before using. Pay attention to names, capitalization, and dates.