Cita APA (7a ed.)

Eurostat. (1991). Sigma: The bulletin of European statistics. Publications Office of the European Union.

Cita Chicago Style (17a ed.)

Eurostat. Sigma: The Bulletin of European Statistics. Luxembourg: Publications Office of the European Union, 1991.

Cita MLA (9a ed.)

Eurostat. Sigma: The Bulletin of European Statistics. Publications Office of the European Union, 1991.