Pullman, P. (2008). Once upon a time in the North (Library ed.). Random House/Listening Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPullman, Philip. Once upon a Time in the North. Library ed. New York: Random House/Listening Library, 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPullman, Philip. Once upon a Time in the North. Library ed. Random House/Listening Library, 2008.
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