000 00271nam a2200097Ia 4500
008 220201s9999 xx 000 0 eng d
100 _aGROFF (JAMES R) & WEINBERG (PAUL N)
245 0 _aUNDERSTANDING UNIX : A CONCEPTUAL GUIDE
260 _bBPB PUB. NEW DELHI
942 _2ddc
999 _c95892
_d95892