Winterton, J., Delamare-Le Deist, F., Stringfellow, E., European Centre for the Development of Vocational Training., & Office for Official Publications of the European Communities. (2006). Typology of knowledge, skills and competences: Clarification of the concept and prototype. Luxembourg: Office for Official Publications of the European Communities.

Winterton, Jonathan., Francoise Delamare-Le Deist, Emma Stringfellow, European Centre for the Development of Vocational Training, and Office for Official Publications of the European Communities. Typology of Knowledge, Skills and Competences: Clarification of the Concept and Prototype. Luxembourg: Office for Official Publications of the European Communities, 2006.

Winterton, Jonathan., et al. Typology of Knowledge, Skills and Competences: Clarification of the Concept and Prototype. Luxembourg: Office for Official Publications of the European Communities, 2006.