Burch, John Information systems : theory and practice - 4th. ed. - New York : Wiley, 1986 - 674 p. : gráf. ; 23 cm ISBN: 0471010979 Subjects--Topical Terms: ANALISIS DE SISTEMASBASES DE DATOSMODELOS MATEMATICOSGESTION DE SISTEMASSISTEMAS DE INFORMACION Universal Decimal Class. No.: 004.65