Okidegbe, N. (1997). Fostering sustainable development: The sector investment program. World Bank.
Chicago-viite (17. p.)Okidegbe, Nwanze. Fostering Sustainable Development: The Sector Investment Program. Washington, D.C.: World Bank, 1997.
MLA-viite (8. p.)Okidegbe, Nwanze. Fostering Sustainable Development: The Sector Investment Program. World Bank, 1997.
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