000 00222 a2200097 4500
001 12642
100 _aVerma,Kusum
245 _aElectronic Library
260 _aNew Delhi
_bAkansha publication
_c2004
090 _c9645
_d9645
942 _aNUST-CAE
_cM
_c36539
999 _c247715
_d247715