Stahl, T., & Guggenheim, É. F. (2003). Agora XI. The learning region ([1st ed.].). Office for Official Publications of the European Communities.
Citace podle Chicago (17th ed.)Stahl, Thomas, a Éric Fries Guggenheim. Agora XI. The Learning Region. [1st ed.]. Luxembourg: Office for Official Publications of the European Communities, 2003.
Citace podle MLA (9th ed.)Stahl, Thomas, a Éric Fries Guggenheim. Agora XI. The Learning Region. [1st ed.]. Office for Official Publications of the European Communities, 2003.
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