000 00335 a2200145 4500
020 _a9813005890
082 _a004.16
_bDYS
090 _c499
_d568
100 _aDyson, Peter
245 _aUnderstanding PC tools 7
260 _aSingapore
_bTech
_c1991
_g1991
300 _axxvii,607p.
_c23cm
650 _aComputer science
942 _cSR
999 _c29695
_d29695