000 00332nam a2200157Ia 4500
100 _aDonovan, John J.
080 _a001.642 Don
526 _dTB
526 _aUG
366 _f20
942 _cBK
245 _aSystems programming .
260 _aMcGraw - Hill, New Delhi
_bNew Delhi
_c1972
300 _axvii, 488
546 _aE
999 _c73169
_d73169