E. V. H. “Preface to Second Edition.” The Attalids of Pergamon, by Esther V. Hansen, 2nd ed., vol. 36, Cornell University Press, ITHACA; LONDON, 1971, pp. vii-viii, www.jstor.org/stable/10.7591/j.cttq4444.2. Accessed 24 Jan. 2021.
E. V. H. (1971). Preface to Second Edition. In Hansen E. (Author), The Attalids of Pergamon (pp. Vii-Viii). ITHACA; LONDON: Cornell University Press. Retrieved January 24, 2021, from http://www.jstor.org/stable/10.7591/j.cttq4444.2
E. V. H. "Preface to Second Edition." In The Attalids of Pergamon, by Hansen Esther V., Vii-iii. ITHACA; LONDON: Cornell University Press, 1971. Accessed January 24, 2021. http://www.jstor.org/stable/10.7591/j.cttq4444.2.
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