APA (7 वां संस्करण) प्रशस्ति पत्र
Velten, J. (2022). Extraordinary forms of aging: Life narratives of centenarians and children with progeria. transcript Verlag.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Velten, Julia. Extraordinary Forms of Aging: Life Narratives of Centenarians and Children with Progeria. Bielefeld: transcript Verlag, 2022.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Velten, Julia. Extraordinary Forms of Aging: Life Narratives of Centenarians and Children with Progeria. transcript Verlag, 2022.
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