Mattern, J. (2020). 12 athletes with disabilities. 12 Story Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMattern, Joanne. 12 Athletes with Disabilities. Mankato, MN: 12 Story Library, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMattern, Joanne. 12 Athletes with Disabilities. 12 Story Library, 2020.
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