Jeffries, S. (2019). Project Duchess (Center Point Large Print edition.). Center Point Large Print.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJeffries, Sabrina. Project Duchess. Center Point Large Print edition. Thorndike, Maine: Center Point Large Print, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रJeffries, Sabrina. Project Duchess. Center Point Large Print edition. Center Point Large Print, 2019.
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