How Difficult It Is to Be God. University of Wisconsin Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHow Difficult It Is to Be God. University of Wisconsin Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHow Difficult It Is to Be God. University of Wisconsin Press.
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