APA (7th ed.) Zitazioa
UNION EUROPEA. (1994). PRE-FEASIBILITY STUDY ON THE POSSIBLE ESTABLISHMENT OF A EUROPEAN MIGRATION OBSERVATORY. UNION EUROPEA.
Chicago Style (17th ed.) Zitazioa
UNION EUROPEA. PRE-FEASIBILITY STUDY ON THE POSSIBLE ESTABLISHMENT OF A EUROPEAN MIGRATION OBSERVATORY. BRUSELAS: UNION EUROPEA, 1994.
MLA (9th ed.) Zitazioa
UNION EUROPEA. PRE-FEASIBILITY STUDY ON THE POSSIBLE ESTABLISHMENT OF A EUROPEAN MIGRATION OBSERVATORY. UNION EUROPEA, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.