North Carolina. University. Graduate School. Research in progress. 1918. s. n.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNorth Carolina. University. Graduate School. Research in Progress. 1918. Chapel Hill: s. n.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNorth Carolina. University. Graduate School. Research in Progress. 1918. s. n.
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