Sheehan. Study in Black and White. Penn State University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSheehan. Study in Black and White. Penn State University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSheehan. Study in Black and White. Penn State University Press.
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