000 00266nam a2200109Ia 4500
008 220201s9999 xx 000 0 eng d
100 _aBECK & MANJULA
245 0 _aSYSTEMS SOFTWARE: AN INT. TO SYSTEM PROG.
250 _a3RD
260 _bPEARSON EDU.
942 _2ddc
999 _c98919
_d98919