000 00309nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c70
040 _aET
100 _aS.K. TANDAN
245 0 _aVIGYAN SHIKSHAN
260 _bAGARWAL PUBLICATION
_aAGRA
300 _a140
500 _a67215
942 _cBK
999 _c73178
_d73178