“Preface.” A Guide to Complex Variables, by Steven G. Krantz, 1st ed., vol. 32, Mathematical Association of America, 2008, pp. IX-X, www.jstor.org/stable/10.4169/j.ctt6wpwc3.2. Accessed 27 July 2021.
Krantz, S. (2008). Preface. In A Guide to Complex Variables (pp. IX-X). Mathematical Association of America. Retrieved July 27, 2021, from http://www.jstor.org/stable/10.4169/j.ctt6wpwc3.2
Krantz, Steven G. "Preface." In A Guide to Complex Variables, IX-X. Mathematical Association of America, 2008. Accessed July 27, 2021. http://www.jstor.org/stable/10.4169/j.ctt6wpwc3.2.
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