Chawla, M., Betcherman, G., & Banerji, A. (2007). From red to gray: The "third transition" of aging populations in Eastern Europe and the former Soviet Union. World Bank.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChawla, Mukesh, Gordon Betcherman, और Arup Banerji. From Red to Gray: The "Third Transition" of Aging Populations in Eastern Europe and the Former Soviet Union. Washington D.C.: World Bank, 2007.
एमएलए (9वां संस्करण) प्रशस्ति पत्रChawla, Mukesh, et al. From Red to Gray: The "Third Transition" of Aging Populations in Eastern Europe and the Former Soviet Union. World Bank, 2007.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.