000 00322nam a2200133Ia 4500
008 190329s9999||||xx |||||||||||||| ||und||
040 _aNITIL
_cNITIL
082 _221st
_a641.5
_bS524U
100 _aSharma, Usha
245 0 _aPakkala shiksha
260 _aDelhi
_bPragati prakashan
_c1999
300 _a224p.
942 _cBKS
999 _c63809
_d63809