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  • × author_ss:"Frias, J.A."
  • × theme_ss:"Datenformate"
  1. Frias, J.A.: ¬La estructura conceptual del registro bibliografico : una revision (1996) 0.02
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  2. Frias, J.A.: Revisiones, desarollo y perspectivas de la ISBD (1996) 0.02
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