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Manuel, R.S.S.: Breve resena historica de la CDU en España (1994)
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Martinez, M.D.G.; Vives, J.: ¬La nova edicio espanyola de la CDU : arriscar-se al canvi? (1996)
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Classificación Decimal Universal (CDU) : Edición abreviada de Norma UNE 50001:2000 (2001)
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