“Excursus: Friendship Illustrated.” Friendship, by A. C. GRAYLING, Yale University Press, NEW HAVEN; LONDON, 2013, pp. 123–166, www.jstor.org/stable/j.ctt5vm5c4.12. Accessed 8 Aug. 2020.
GRAYLING, A. (2013). Excursus: Friendship Illustrated. In Friendship (pp. 123-166). NEW HAVEN; LONDON: Yale University Press. Retrieved August 8, 2020, from www.jstor.org/stable/j.ctt5vm5c4.12
GRAYLING, A. C. "Excursus: Friendship Illustrated." In Friendship, 123-66. NEW HAVEN; LONDON: Yale University Press, 2013. Accessed August 8, 2020. www.jstor.org/stable/j.ctt5vm5c4.12.
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