000 00208 a2200097 4500
001 31448
100 _aSrirengan K
245 _aUnderstanding UNIX
260 _aNew Delhi
_bPHI
_c1999
090 _c21332
_d21332
942 _aNUST-CAE
_cM
_c12595
999 _c266521
_d266521