Nagele. The Evil That Surrounds Us. Indiana University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNagele. The Evil That Surrounds Us. Indiana University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNagele. The Evil That Surrounds Us. Indiana University Press.
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