APA aipamena

IE Business Cases. Ross Spain, S.A. [s.n.].

Chicago Style aipamena

IE Business Cases. Ross Spain, S.A. [S.l.]: [s.n.].

MLA aipamena

IE Business Cases. Ross Spain, S.A. [s.n.].

Kontuz: berrikusi erreferentzia hauek erabili aurretik.