Baltes, M. M. (1996). The many faces of dependency in old age. Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBaltes, Margret M. The Many Faces of Dependency in Old Age. Cambridge: Cambridge University Press, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBaltes, Margret M. The Many Faces of Dependency in Old Age. Cambridge University Press, 1996.
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