000 00233nam a2200097Ia 4500
008 220201s9999 xx 000 0 eng d
100 _aSKIDMORE (SIEVE)
245 0 _aINTRODUCING SYSTEMS ANALYSIS
260 _bB.P.B. PUB
942 _2ddc
999 _c97562
_d97562