000 00333nam a2200097 i 4500
008 010101s sp g spa
100 _aALVARGONZALEZ,R.
245 0 _aCONTR. ANALISIS REGRESION.DEMA
_c/ ALVARGONZALEZ,R.
650 _aAGRICULTURA
997 _dData non definida (008date1) ; Data non definida (260) ; Falta ISBN
_e1