Hartley. The Heroic and the Notorious. Southern Illinois University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHartley. The Heroic and the Notorious. Southern Illinois University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHartley. The Heroic and the Notorious. Southern Illinois University Press.
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