Gelfand, D. E. (2003). Aging and ethnicity: Knowledge and services (2nd ed.). Springer Pub..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGelfand, Donald E. Aging and Ethnicity: Knowledge and Services. 2nd ed. New York: Springer Pub., 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGelfand, Donald E. Aging and Ethnicity: Knowledge and Services. 2nd ed. Springer Pub., 2003.
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