Ferry, P. (2016). Old heart (Center Point Large Print edition.). Center Point Large Print.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFerry, Peter. Old Heart. Center Point Large Print edition. Thorndike, Maine: Center Point Large Print, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFerry, Peter. Old Heart. Center Point Large Print edition. Center Point Large Print, 2016.
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