Παραπομπή APA
Roberts, J., & International Centre for Black Sea Studies. (2007). Energy cooperation among the BSEC member states: Towards an energy strategy for the BSEC. Athens: ICBSS.
Παραπομπή Chicago StyleRoberts, John., and International Centre for Black Sea Studies. Energy Cooperation Among the BSEC Member States: Towards an Energy Strategy for the BSEC. Athens: ICBSS, 2007.
Παραπομπή MLARoberts, John., and International Centre for Black Sea Studies. Energy Cooperation Among the BSEC Member States: Towards an Energy Strategy for the BSEC. Athens: ICBSS, 2007.
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