Não informado. (1991). Economic & Financial Computing. European Economics and Financial Centre.
Chicago-viite (17. p.)Não informado. Economic & Financial Computing. London: European Economics and Financial Centre, 1991.
MLA-viite (8. p.)Não informado. Economic & Financial Computing. European Economics and Financial Centre, 1991.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.