World Bank. (1982). Abstracts of current studies: The World Bank research program. World Bank.
Chicago-čujuhus (17. p.)World Bank. Abstracts of Current Studies: The World Bank Research Program. Washington, D.C.: World Bank, 1982.
MLA-čujuhus (9. p.)World Bank. Abstracts of Current Studies: The World Bank Research Program. World Bank, 1982.
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