Παραπομπή σε μορφή APA (7η εκδ.)

European Commission. (2018). EU energy in figures: Statistical pocketbook 2018. Publications Office of the European Union.

Παραπομπή σε μορφή Chicago (17η εκδ.)

European Commission. EU Energy in Figures: Statistical Pocketbook 2018. Luxembourg: Publications Office of the European Union, 2018.

Παραπομπή σε μορφή MLA (8th εκδ.)

European Commission. EU Energy in Figures: Statistical Pocketbook 2018. Publications Office of the European Union, 2018.