000 00331nam a2200145Ia 4500
020 _a0000000000
082 _b1177
_a001.642
100 _a"NA"
245 0 _aComputer Studies 2002
260 _b,PUNJAB TEXT BOOK BOARD
_c2000
300 _a379
944 _cBK
999 _c362983
_d362983