Berlin, I. (1993). The hedgehog and the fox: An essay on tolstoy's view of history (First edition.). Ivan R. Dee.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBerlin, Isaiah. The Hedgehog and the Fox: An Essay on Tolstoy's View of History. First edition. Chicago: Ivan R. Dee, 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBerlin, Isaiah. The Hedgehog and the Fox: An Essay on Tolstoy's View of History. First edition. Ivan R. Dee, 1993.
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