“Preface.” Bluebirds And Their Survival, by Wayne H. Davis and Philippe Roca, University Press of Kentucky, Lexington, Kentucky, 2008, pp. ix-x, www.jstor.org/stable/j.ctt130hsx6.4. Accessed 31 May 2020.
Davis, W., & Roca, P. (2008). Preface. In Bluebirds And Their Survival (pp. Ix-X). Lexington, Kentucky: University Press of Kentucky. Retrieved May 31, 2020, from www.jstor.org/stable/j.ctt130hsx6.4
Davis, Wayne H., and Philippe Roca. "Preface." In Bluebirds And Their Survival, Ix-X. Lexington, Kentucky: University Press of Kentucky, 2008. Accessed May 31, 2020. www.jstor.org/stable/j.ctt130hsx6.4.
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