Não informado. (1985). I'M: Information market. Commission of the European Communities.
Chicago-viite (17. p.)Não informado. I'M: Information Market. Luxembourg: Commission of the European Communities, 1985.
MLA-viite (8. p.)Não informado. I'M: Information Market. Commission of the European Communities, 1985.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.