Porter. Beyond Fingal's Cave. University of Rochester Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPorter. Beyond Fingal's Cave. University of Rochester Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPorter. Beyond Fingal's Cave. University of Rochester Press.
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