000 00302nam a2200121Ia 4500
008 240201s2002 xx 000 0 eng d
082 _a500 PER
245 0 _aKNOWLEDGE BOOK OF SCIENCE - VOLUME -1
260 _bPERFECT BOOKS DELHI (INDIA)
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300 _a192
650 _aSCIENCE
942 _2ddc
_cBK
999 _c3108
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