APA-viite (7. p.)
ebrary, Inc, & Singh, J. (2010). Public procurement of energy efficiency services: Lessons from international experience. World Bank.
Chicago-viite (17. p.)
ebrary, Inc, ja Jas Singh. Public Procurement of Energy Efficiency Services: Lessons from International Experience. Washington, D.C.: World Bank, 2010.
MLA-viite (9. p.)
ebrary, Inc, ja Jas Singh. Public Procurement of Energy Efficiency Services: Lessons from International Experience. World Bank, 2010.
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