D.R.F. “Preface.” Ur III Period (2112-2004 BC), by DOUGLAS FRAYNE, University of Toronto Press, Toronto; Buffalo; London, 1997, pp. xi-xii, www.jstor.org/stable/10.3138/j.ctt13x1qkz.4. Accessed 19 Sept. 2020.
D.R.F. (1997). Preface. In FRAYNE D. (Author), Ur III Period (2112-2004 BC) (pp. Xi-Xii). Toronto; Buffalo; London: University of Toronto Press. Retrieved September 19, 2020, from http://www.jstor.org/stable/10.3138/j.ctt13x1qkz.4
D.R.F. "Preface." In Ur III Period (2112-2004 BC), by FRAYNE DOUGLAS, Xi-Xii. Toronto; Buffalo; London: University of Toronto Press, 1997. Accessed September 19, 2020. http://www.jstor.org/stable/10.3138/j.ctt13x1qkz.4.
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