000 00261nam a2200121 4500
020 _a9788120347267
082 _a005.43
_bCHA/O
100 _aChandra Mohan
245 _aOperating systems
260 _aDelhi
_bPHI Learning
_c2013
300 _a225p
942 _cBK
999 _c45334
_d45334