000 00347nam a22001457a 4500
999 _c11969
_d11969
005 20210806121040.0
008 210806b ||||| |||| 00| 0 eng d
041 _aENGLISH
100 _aLEON, ALEXIA.
245 _aDATA BASE MANAGEMENT SYSTEMS
260 _bLEON TECH WORLD
_c1999
300 _a988 p.
650 _aCOMPUTER
942 _2ddc
_cBK