APA (7 वां संस्करण) प्रशस्ति पत्र
Groarke, L. (1990). Greek scepticism: Anti-realist trends in ancient thought. McGill-Queen's University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Groarke, Leo. Greek Scepticism: Anti-realist Trends in Ancient Thought. Montreal ; Buffalo: McGill-Queen's University Press, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Groarke, Leo. Greek Scepticism: Anti-realist Trends in Ancient Thought. McGill-Queen's University Press, 1990.
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