000 00308nam a2200133Ia 4500
008 220201s1987 xx 000 0 eng d
082 _a4.6
_bSCH
100 _aSchaffer,Howard
245 0 _aData center operations
250 _a2nd
260 _aLondon
_bPrentice Hall
_c1987
300 _a500
942 _2ddc
999 _c33636
_d33636