000 00496nam a22001577a 4500
008 230221b |||||||| |||| 00| 0 eng d
020 _a0-85012-101-9
040 _aNational Science Library
_cNational Science Library
080 _aD 681.3.01:002(02)
_bK9
245 _aSystems documentation manual
_c/ National Computing Centre
260 _a1973:
_bThe National Computing Centre Limited,
_c1969
650 _aComputer
653 _aStandards
653 _aCommunication
942 _2udc
_cBK
999 _c2742
_d2742