Koestler, A. (1949). Insight and outlook: An inquiry into the common foundations of science, art and social ethics. Macmillan.
Cita Chicago Style (17a ed.)Koestler, Arthur. Insight and Outlook: An Inquiry into the Common Foundations of Science, Art and Social Ethics. New York: Macmillan, 1949.
Cita MLA (8a ed.)Koestler, Arthur. Insight and Outlook: An Inquiry into the Common Foundations of Science, Art and Social Ethics. Macmillan, 1949.
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