“Preface.” Ginkgo: The Tree That Time Forgot, by Peter Crane and PETER RAVEN, Yale University Press, New Haven; London, 2013, pp. xvii-xx, www.jstor.org/stable/j.ctt32bhvn.4. Accessed 14 Aug. 2020.
Crane, P., & RAVEN, P. (2013). Preface. In Ginkgo: The Tree That Time Forgot (pp. Xvii-Xx). New Haven; London: Yale University Press. Retrieved August 14, 2020, from www.jstor.org/stable/j.ctt32bhvn.4
Crane, Peter, and PETER RAVEN. "Preface." In Ginkgo: The Tree That Time Forgot, Xvii-Xx. New Haven; London: Yale University Press, 2013. Accessed August 14, 2020. www.jstor.org/stable/j.ctt32bhvn.4.
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