Schillace, B. (2021). Mr. Humble and Dr. Butcher: A monkey's head, the Pope's neuroscientist, and the quest to transplant the soul (First Simon & Schuster hardcover edition.). Simon & Schuster.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSchillace, Brandy. Mr. Humble and Dr. Butcher: A Monkey's Head, the Pope's Neuroscientist, and the Quest to Transplant the Soul. First Simon & Schuster hardcover edition. New York: Simon & Schuster, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSchillace, Brandy. Mr. Humble and Dr. Butcher: A Monkey's Head, the Pope's Neuroscientist, and the Quest to Transplant the Soul. First Simon & Schuster hardcover edition. Simon & Schuster, 2021.
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