ebrary, Inc. (2010). The future of the natural gas market in South East Europe. World Bank.
Tohutoru Kātū Chicago (17th ed.)ebrary, Inc. The Future of the Natural Gas Market in South East Europe. Washington, D.C.: World Bank, 2010.
Tohutoro MLA (9th ed.)ebrary, Inc. The Future of the Natural Gas Market in South East Europe. World Bank, 2010.
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