North, H. (1966). Sophrosyne: Self-knowledge and self-restraint in Greek literature. Cornell University Press.
Chicago-viite (17. p.)North, Helen. Sophrosyne: Self-knowledge and Self-restraint in Greek Literature. Ithaca, N.Y.: Cornell University Press, 1966.
MLA-viite (8. p.)North, Helen. Sophrosyne: Self-knowledge and Self-restraint in Greek Literature. Cornell University Press, 1966.
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