Weiss, P., & Sellin, B. (2006). ICT skills certification in Europe ([1st ed.].). Office for Official Publications of the European Communities.
Citace podle Chicago (17th ed.)Weiss, Peter, a Burkart Sellin. ICT Skills Certification in Europe. [1st ed.]. Luxembourg: Office for Official Publications of the European Communities, 2006.
Citace podle MLA (9th ed.)Weiss, Peter, a Burkart Sellin. ICT Skills Certification in Europe. [1st ed.]. Office for Official Publications of the European Communities, 2006.
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