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  1. Frias, J.A.; Alvarez, M.I.P.: ¬La ordenacion de los asientos bibliograficos en los catalogos : Hacia una normativa internacional (1995) 9.91 
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  2. Frias, J.A.: Origines de la ISBD (1996) 9.91 
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  3. Frias, J.A.: Sistemas expertos y catalogacion descriptiva : revision bibliografica (1996) 9.91 
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  4. Frias, J.A.: Revisiones, desarollo y perspectivas de la ISBD (1996) 9.91 
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  5. Frias, J.A.: ¬La estructura conceptual del registro bibliografico : una revision (1996) 9.91 
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