Sander, R. (2000). Berlin - Helsinki - Stockholm: Three European Capitals Facing the Future.
Chicago-Zitierstil (17. Ausg.)Sander, Robert. Berlin - Helsinki - Stockholm: Three European Capitals Facing the Future. Berlin, 2000.
MLA-Zitierstil (8. Ausg.)Sander, Robert. Berlin - Helsinki - Stockholm: Three European Capitals Facing the Future. 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.