000 00331nam a2200157Ia 4500
020 _a9789690024220
040 _cPK-LaCSN
082 _a001.642
_bNIL
100 _aNA
245 0 _aMicrosoft MS DOS
260 _cNA
_bNA
_aNA
300 _a352
942 _cTR
999 _c861815
_d861792