(2014). Policy Tracker, EU and Russia's Energy Policy at the Backdrop of the South Stream Pipeline. Centăr za izsledvane na demokracijata.
Chicago-Zitierstil (17. Ausg.)Policy Tracker, EU and Russia's Energy Policy at the Backdrop of the South Stream Pipeline. Sofia [Bulgaria]: Centăr za izsledvane na demokracijata, 2014.
MLA-Zitierstil (9. Ausg.)Policy Tracker, EU and Russia's Energy Policy at the Backdrop of the South Stream Pipeline. Centăr za izsledvane na demokracijata, 2014.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.