Smith, W. (2019). Exercises for Parkinson's disease: The complete fitness guide to improve mobility and wellness. Hatherleigh.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSmith, William. Exercises for Parkinson's Disease: The Complete Fitness Guide to Improve Mobility and Wellness. Hobart, NY: Hatherleigh, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSmith, William. Exercises for Parkinson's Disease: The Complete Fitness Guide to Improve Mobility and Wellness. Hatherleigh, 2019.
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