000 00358nam a22001457a 4500
020 _a40 131968165
082 _a05001.16 HAR
100 _aHARPER , William L
245 _aDATA PROCESSING DOCUMENTATION
260 _aLONDON
_bMcGRAW HILL
_c1980
300 _a303p.
_bill,:24cm
500 _ainclude index
650 _adata processing
942 _cBK
999 _c14700
_d14700