Virag, A. (2013). Transition in the European refining sector: Strategies to meet present and future industry challenges from a Central European perspective. Oxford Institute for Energy Studies.
Čikaški stil citiranja (17. izdanje)Virag, A. Transition in the European Refining Sector: Strategies to Meet Present and Future Industry Challenges from a Central European Perspective. Oxford Institute for Energy Studies, 2013.
MLA način citiranja (9. izdanje)Virag, A. Transition in the European Refining Sector: Strategies to Meet Present and Future Industry Challenges from a Central European Perspective. Oxford Institute for Energy Studies, 2013.
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