000 00245nam a22001097a 4500
082 _a621.381 REN'D
100 _aRENWICH, W
_977097
245 _aDIGITAL STORAGE SYSTEM
260 _aLONDON
_bCHAPMAN & HALL
_c1971
300 _a309P
942 _cBK
999 _c582421
_d582421