European Centre for the Development of Vocational Training. (1998). Work Programme, 1998-. Office for Official Publications of the European Communities.
Chicago-viite (17. p.)European Centre for the Development of Vocational Training. Work Programme, 1998-. Luxembourg: Office for Official Publications of the European Communities, 1998.
MLA-viite (9. p.)European Centre for the Development of Vocational Training. Work Programme, 1998-. Office for Official Publications of the European Communities, 1998.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.