APA-referens (7:e uppl.)

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.

Chicago-referens (17:e uppl.)

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-referens (9:e uppl.)

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.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.