APA (7 वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, & Bengtson, V. L. (1996). Adulthood and aging: Research on continuities and discontinuities. Springer Pub..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, और Vern L. Bengtson. Adulthood and Aging: Research on Continuities and Discontinuities. New York: Springer Pub., 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, और Vern L. Bengtson. Adulthood and Aging: Research on Continuities and Discontinuities. Springer Pub., 1996.
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