Kovacevic, A. (2007). The potential contribution of natural gas to sustainable development in South Eastern Europe. Oxford Institute for Energy Studies.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Kovacevic, A. The Potential Contribution of Natural Gas to Sustainable Development in South Eastern Europe. Oxford Institute for Energy Studies, 2007.
MLA -ийн эшлэл (9 дэх хэвлэлт)Kovacevic, A. The Potential Contribution of Natural Gas to Sustainable Development in South Eastern Europe. Oxford Institute for Energy Studies, 2007.
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