Bell. Our Roots Run Deep as Ironweed. University of Illinois Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBell. Our Roots Run Deep as Ironweed. University of Illinois Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBell. Our Roots Run Deep as Ironweed. University of Illinois Press.
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