Statistics in focus: Environment and energy: Eurostat. Eurostat.
Chicago-Zitierstil (17. Ausg.)Statistics in Focus: Environment and Energy: Eurostat. Luxembourg: Eurostat.
MLA-Zitierstil (8. Ausg.)Statistics in Focus: Environment and Energy: Eurostat. Eurostat.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.