000 00347 a2200157 4500
020 _a9788120301405
040 _bEnglish
082 _a519.283:004 GOR
245 _aSystem simulation
250 _a2/e
260 _aNew Delhi
_bPHI Learning Pvt. Ltd.,
_c1978
300 _b324p.
650 _asystem
942 _cG
100 _aGordon, Geoffrey
999 _c3158
_d3158