000 00279nam a2200109Ia 4500
008 230929s9999 xx 000 0 und d
020 _a'9788184970074
090 _a503
245 0 0 _aILLUSTRATED SCIENCE ENCYCLOPEDIA
260 _aN.DELHI
_bBPI INDIA
_c2009
650 0 _aMATH/SCIENCE
999 _c2843
_d2843