000 00254nam a22001217a 4500
082 _a500
_bCHA/E
100 _aCHATTOPADHYAY
245 _aEXPERIMENT WITH MATERIALS
260 _aDELHI
_bSTERLING PRESS
300 _a40
650 _aGK
_zDELHI
942 _cBK
999 _c6395
_d6395