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English | W D6 1034(E) 2012 |
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Strasbourg : European Audiovisual Observatory, 2008.
English | N 636 NIK.S |
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Ginebra : Organización Mundial de la Propiedad Intelectual, 2005.
Spanish | W D6 1034(S) 2012 |
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Strasbourg, France : European Audiovisual Observatory, 2011.
English | N 636 COE.W |
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Tunis : Arab States Broadcasting Union, 2011. Second edition.
English | N 636 GDO.R |
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Cambridge : Cambridge University Press, 2004.
English | C 383 GER.W |
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