000 00324nam a2200145Ia 4500
020 _a8171812589
082 _b0650
_a000
100 _a"NA"
245 0 _aKNOWLEDGE BOOSTER
260 _b,LEARNERS PRESS
_aNEW DELHI
_c1995
300 _a56
944 _cBK
999 _c614762
_d614762