R. Jennings M.D, T., & Runnette, S. (2018). Aging brain: Proven steps to prevent dementia and sharpen your mind (Unabridged.). Mission Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रR. Jennings M.D, Timothy, और Sean Runnette. Aging Brain: Proven Steps to Prevent Dementia and Sharpen Your Mind. Unabridged. Escondido: Mission Audio, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रR. Jennings M.D, Timothy, और Sean Runnette. Aging Brain: Proven Steps to Prevent Dementia and Sharpen Your Mind. Unabridged. Mission Audio, 2018.
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