Young. Day of the Border Guards. University of Arkansas Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रYoung. Day of the Border Guards. University of Arkansas Press.
एमएलए (8वां संस्करण) प्रशस्ति पत्रYoung. Day of the Border Guards. University of Arkansas Press.
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