Lua APA (7ú heag.)
ebrary, Inc, & Singh, J. (2010). Public procurement of energy efficiency services: Lessons from international experience. World Bank.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Jas Singh. Public Procurement of Energy Efficiency Services: Lessons from International Experience. Washington, D.C.: World Bank, 2010.
Lua MLA (9ú heag.)
ebrary, Inc, agus Jas Singh. Public Procurement of Energy Efficiency Services: Lessons from International Experience. World Bank, 2010.
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