Krugerud. The Girl in Building C. Minnesota Historical Society Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKrugerud. The Girl in Building C. Minnesota Historical Society Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKrugerud. The Girl in Building C. Minnesota Historical Society Press.
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