Barry, D. (2019). Lessons from Lucy: The simple joys of an old, happy dog (First Simon & Schuster hardcover edition.). Simon & Schuster.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBarry, Dave. Lessons from Lucy: The Simple Joys of an Old, Happy Dog. First Simon & Schuster hardcover edition. New York: Simon & Schuster, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBarry, Dave. Lessons from Lucy: The Simple Joys of an Old, Happy Dog. First Simon & Schuster hardcover edition. Simon & Schuster, 2019.
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