000 00320nam a2200133Ia 4500
008 220919s9999 xx 000 0 und d
082 _bGUP
100 _aGUPTA, RENU
245 0 _aPRACTICAL ENGINEERING CHEMISTRY
260 _bCOLLEGE BOOK CENTER, JAIPUR
_c2007
300 _aA1
650 _aChemistry
942 _cBK
999 _c160715
_d160715