McCarthy, F. D., & Zheng, K. (1996). Population aging and pension systems. World Bank, Office of the Senior Vice President, Development Economics.
Lua i Stíl Chicago (17ú heag.)McCarthy, F. Desmond, agus Kangbin Zheng. Population Aging and Pension Systems. Washington, D.C: World Bank, Office of the Senior Vice President, Development Economics, 1996.
Lua MLA (9ú heag.)McCarthy, F. Desmond, agus Kangbin Zheng. Population Aging and Pension Systems. World Bank, Office of the Senior Vice President, Development Economics, 1996.
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