“PREFACE.” What Is Emotion?, by JEROME KAGAN, Yale University Press, NEW HAVEN; LONDON, 2007, pp. ix-xii, www.jstor.org/stable/j.ctt5vm7st.3. Accessed 2 Aug. 2021.
KAGAN, J. (2007). PREFACE. In What Is Emotion? (pp. Ix-Xii). NEW HAVEN; LONDON: Yale University Press. Retrieved August 2, 2021, from http://www.jstor.org/stable/j.ctt5vm7st.3
KAGAN, JEROME. "PREFACE." In What Is Emotion?, Ix-Xii. NEW HAVEN; LONDON: Yale University Press, 2007. Accessed August 2, 2021. http://www.jstor.org/stable/j.ctt5vm7st.3.
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