Ward, J. R. (2020). A warm heart in winter: A Caldwell Christmas (First Pocket Books paperback edition.). Pocket Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWard, J. R. A Warm Heart in Winter: A Caldwell Christmas. First Pocket Books paperback edition. New York: Pocket Books, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWard, J. R. A Warm Heart in Winter: A Caldwell Christmas. First Pocket Books paperback edition. Pocket Books, 2020.
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