000 00288 a2200121 4500
080 _a681.14:311
_bD 639 D
245 1 _aData processing
_cby K.N. Dodd
260 _aLondon
_bSt Paul's House
_c1969
650 _aData Processing
100 1 _aDodd, K.N.
300 _a175 p.
901 _a107553
999 _c52613
_d52613