Schroeder, S. (2015). Mathematics and Forms of Life. Nordic Wittgenstein Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSchroeder, Severin. Mathematics and Forms of Life. Nordic Wittgenstein Society, 2015.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSchroeder, Severin. Mathematics and Forms of Life. Nordic Wittgenstein Society, 2015.
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