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Siegfried Bergner
Bund-Verlag 1991 HBS Praxis Bd. 3
Available at 2 libraries
Siegfried Bergner ... [et al.]
CEDEFOP, European Centre for the Development of Vocational Training , Office for Official Publications of the European Communities 1991 1st ed CEDEFOP document
Available at 9 libraries
CEDEFOP, Centre européen pour le développement de la formation professionnelle 1990 1re éd CEDEFOP document
Available at 3 libraries