BELSKY, J. K. (1999). The Psychology of aging: Theory, research, and interventions. Pacific Groove.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBELSKY, Janet K. The Psychology of Aging: Theory, Research, and Interventions. Pacific Groove, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBELSKY, Janet K. The Psychology of Aging: Theory, Research, and Interventions. Pacific Groove, 1999.
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