000 00274nam a2200109Ia 4500
008 220120s9999||||xx |||||||||||||| ||und||
100 _aDas, Sumitabha
_91470
245 0 _aUNIX-Concepts & Applications
260 _aTata mc graw hill
300 _b115
650 _aMECHANICHAL
999 _c137275
_d137275