000 00308nam a2200121 4500
020 _a9788177585551
082 _a005.42
100 _aMANJULA D.
_aBECK LELAND L.
245 _aSYSTEMS SOFTWARE AN INTRODUCTION TO SYSTEM PROGRAMMING
260 _aNEW DELHI
_bPEARSON
_c1997
300 _aXV, 435P
942 _cBK
999 _c7714
_d7714